Anacleto Escobar and his wife, Cayetana Roman, laugh at a ceremony commemorating his 100th birthday Wednesday, January 7, in Neembucu, Paraguay. Escobar, a veteran of the Chaco War that was fought between Paraguay and Bolivia in the 1930s, was given a house as a gift. He and his wife had never owned their own home before.
Anacleto Escobar and his wife, Cayetana Roman, laugh at a ceremony commemorating his 100th birthday Wednesday, January 7, in Neembucu, Paraguay. Escobar, a veteran of the Chaco War that was fought between Paraguay and Bolivia in the 1930s, was given a house as a gift. He and his wife had never owned their own home before.
AFP/Getty Images
Singer Beyonce and her husband, rapper Jay Z, laugh while sitting courtside at a Los Angeles Clippers basketball game on Thursday, January 22.
Singer Beyonce and her husband, rapper Jay Z, laugh while sitting courtside at a Los Angeles Clippers basketball game on Thursday, January 22.
Harry How/Getty Images
Britain's Queen Elizabeth II watches horse racing Saturday, June 6, in Epsom, England.
Britain's Queen Elizabeth II watches horse racing Saturday, June 6, in Epsom, England.
Max Mumby/Indigo/Getty Images
An actor laughs during a re-enactment of Jesus Christ's crucifixion Friday, April 3, in Los Angeles. The re-enactment was part of Good Friday festivities.
An actor laughs during a re-enactment of Jesus Christ's crucifixion Friday, April 3, in Los Angeles. The re-enactment was part of Good Friday festivities.
MARK RALSTON/AFP/Getty Images
Tiger Woods laughs during the Champion Golfers' Challenge, a four-hole exhibition event held before the British Open on Wednesday, July 25.
Tiger Woods laughs during the Champion Golfers' Challenge, a four-hole exhibition event held before the British Open on Wednesday, July 25.
Ross Kinnaird/R&A/Getty Images
A tiger cub looks as though she is laughing Tuesday, July 28, in Senec, Slovakia. The 2-week-old cub had been rejected by her mother at the Siberian Tiger Oasis in Senec. A team of volunteers, including this dog, took over parenting duties for the inexperienced mother.
A tiger cub looks as though she is laughing Tuesday, July 28, in Senec, Slovakia. The 2-week-old cub had been rejected by her mother at the Siberian Tiger Oasis in Senec. A team of volunteers, including this dog, took over parenting duties for the inexperienced mother.
Ivan Kov/REX Shutterstock
Pope Francis laughs with a child at the Vatican on Saturday, September 5.
Pope Francis laughs with a child at the Vatican on Saturday, September 5.
TONY GENTILE/Reuters/Landov
Pop star Taylor Swift laughs in the press room of the Billboard Music Awards on Sunday, May 17. She won eight awards, including top artist.
Pop star Taylor Swift laughs in the press room of the Billboard Music Awards on Sunday, May 17. She won eight awards, including top artist.
ROBYN BECK/AFP/Getty Images
FC Barcelona's talented attacking trio -- from left, Luis Suarez, Neymar and Lionel Messi -- celebrate a goal during a league match in Barcelona, Spain, on Sunday, January 11. Barcelona defeated Atletico Madrid 3-1.
FC Barcelona's talented attacking trio -- from left, Luis Suarez, Neymar and Lionel Messi -- celebrate a goal during a league match in Barcelona, Spain, on Sunday, January 11. Barcelona defeated Atletico Madrid 3-1.
ALBERT GEA/Reuters/Landov
North Korean leader Kim Jong Un, right, inspects an army drill Saturday, January 31, in Pyongyang, North Korea.
North Korean leader Kim Jong Un, right, inspects an army drill Saturday, January 31, in Pyongyang, North Korea.
KCNA/Xinhua/Landov
Television personality Michael Strahan clowns around on the set of Bravo's "Watch What Happens Live" on Thursday, October 15.
Television personality Michael Strahan clowns around on the set of Bravo's "Watch What Happens Live" on Thursday, October 15.
Bravo/NBCUniversal/Getty Images
Women prepare to get into the pool at the Cold Water Swimming Championships, which were held Saturday, January 24, in London.
Women prepare to get into the pool at the Cold Water Swimming Championships, which were held Saturday, January 24, in London.
LUKE MACGREGOR/Reuters/Landov
Boys play together after jumping in the Nile River to cool off Wednesday, May 27, in Cairo.
Boys play together after jumping in the Nile River to cool off Wednesday, May 27, in Cairo.
AMR ABDALLAH DALSH/Reuters/Landov
Little League baseball players from Japan celebrate after a game-winning hit to defeat Mexico on Saturday, August 29. The team would go on to beat a team from Pennsylvania and win the tournament.
Little League baseball players from Japan celebrate after a game-winning hit to defeat Mexico on Saturday, August 29. The team would go on to beat a team from Pennsylvania and win the tournament.
Matt Slocum/AP
U.S. President Barack Obama laughs at the hairnets that members of the press had to wear while touring a food factory in Addis Ababa, Ethiopia, on Tuesday, July 28.
U.S. President Barack Obama laughs at the hairnets that members of the press had to wear while touring a food factory in Addis Ababa, Ethiopia, on Tuesday, July 28.
SAUL LOEB/AFP/Getty Images
Democratic presidential candidate Hillary Clinton laughs before speaking to supporters at a Human Rights Campaign breakfast in Washington on Saturday, October 3.
Democratic presidential candidate Hillary Clinton laughs before speaking to supporters at a Human Rights Campaign breakfast in Washington on Saturday, October 3.
JOSHUA ROBERTS/Reuters/Landov
Britain's Prince Harry and his sister-in-law, Catherine, Duchess of Cambridge, laugh as they take part in a "welly wanging" charity event in London on Monday, October 26. Welly wanging involves throwing a Wellington boot as far as possible.
Britain's Prince Harry and his sister-in-law, Catherine, Duchess of Cambridge, laugh as they take part in a "welly wanging" charity event in London on Monday, October 26. Welly wanging involves throwing a Wellington boot as far as possible.
Tim Ireland/WPA Pool/Getty Images
Actor Morgan Freeman laughs Thursday, April 30, as he takes part in a radio event hosted by SiriusXM in New York.
Actor Morgan Freeman laughs Thursday, April 30, as he takes part in a radio event hosted by SiriusXM in New York.
Cindy Ord/Getty Images
The Tootsie Rollers, an all-girl band from London, attend the Royal Ascot horse races in Ascot, England, on Wednesday, June 17.
The Tootsie Rollers, an all-girl band from London, attend the Royal Ascot horse races in Ascot, England, on Wednesday, June 17.
Chris Jackson/Getty Images
The Rev. Michael Bruce Curry laughs Sunday, November 1, as he waits for the traditional opening of the doors at the Washington National Cathedral. Curry became the first African-American to serve as presiding bishop of the Episcopal Church.
The Rev. Michael Bruce Curry laughs Sunday, November 1, as he waits for the traditional opening of the doors at the Washington National Cathedral. Curry became the first African-American to serve as presiding bishop of the Episcopal Church.
MIKE THEILER/Reuters/Landov
Navdeep Bains, Canada's new minister of innovation, science and economic development, is congratulated on his appointment by Prime Minister Justin Trudeau, right, at Rideau Hall in Ottawa on Wednesday, November 4.
Navdeep Bains, Canada's new minister of innovation, science and economic development, is congratulated on his appointment by Prime Minister Justin Trudeau, right, at Rideau Hall in Ottawa on Wednesday, November 4.
CHRIS WATTIE/Reuters/Landov
Model Kendall Jenner, right, attends a Calvin Klein fashion show in New York with Vogue editor-in-chief Anna Wintour, left, and Vogue creative director Grace Coddington on Thursday, September 17.
Model Kendall Jenner, right, attends a Calvin Klein fashion show in New York with Vogue editor-in-chief Anna Wintour, left, and Vogue creative director Grace Coddington on Thursday, September 17.
Charles Sykes/Invision/AP
Two New York Jets -- Damon Harrison, left, and Sheldon Richardson -- laugh before an NFL preseason game in East Rutherford, New Jersey, on Thursday, September 3.
Two New York Jets -- Damon Harrison, left, and Sheldon Richardson -- laugh before an NFL preseason game in East Rutherford, New Jersey, on Thursday, September 3.
Rich Schultz/Getty Images
Republican presidential candidate Mike Huckabee laughs with a staff member Friday, July 31, while attending the RISE Initiative black Christian summit in Tinley Park, Illinois.
Republican presidential candidate Mike Huckabee laughs with a staff member Friday, July 31, while attending the RISE Initiative black Christian summit in Tinley Park, Illinois.
Daniel Acker/Bloomberg/Getty Images
Virgin Group founder Richard Branson and Sheryl Sandberg, the chief operating officer of Facebook, have a laugh during a television interview in San Francisco on Thursday, April 23.
Virgin Group founder Richard Branson and Sheryl Sandberg, the chief operating officer of Facebook, have a laugh during a television interview in San Francisco on Thursday, April 23.
David Paul Morris/Bloomberg/Getty Images
The Dalai Lama and oceanographer Walter Munk share a moment during a discussion about climate change Monday, July 6, at the University of California-Irvine.
The Dalai Lama and oceanographer Walter Munk share a moment during a discussion about climate change Monday, July 6, at the University of California-Irvine.
Michael Goulding/The Orange County Register/ZUMA Wire
Rapper Snoop Dogg laughs during TechCrunch Disrupt, a technology conference in San Francisco, on Monday, September 21.
Rapper Snoop Dogg laughs during TechCrunch Disrupt, a technology conference in San Francisco, on Monday, September 21.
David Paul Morris/Bloomberg/Getty Images
Iranian Foreign Minister Mohammad Javad Zarif jokes with reporters in Geneva, Switzerland, before meeting with U.S. Secretary of State John Kerry on Wednesday, January 14.
Iranian Foreign Minister Mohammad Javad Zarif jokes with reporters in Geneva, Switzerland, before meeting with U.S. Secretary of State John Kerry on Wednesday, January 14.
RICK WILKING/AFP/Getty Images
Tomi Menaka, a 92-year-old member of a singing and dancing troupe, laughs during a performance on Japan's Kohama Island on Monday, June 22.
Tomi Menaka, a 92-year-old member of a singing and dancing troupe, laughs during a performance on Japan's Kohama Island on Monday, June 22.
TORU YAMANAKA/AFP/Getty Images
Ecuadorian President Rafael Correa, right, jokes with Bolivian President Evo Morales during a meeting in Tiquipaya, Bolivia, on Monday, October 12.
Ecuadorian President Rafael Correa, right, jokes with Bolivian President Evo Morales during a meeting in Tiquipaya, Bolivia, on Monday, October 12.
DAVID MERCADO/Reuters/Landov
U.S. Rep. Paul Ryan, a Republican from Wisconsin, laughs with U.S. Sen Ted Cruz, foreground, during a joint meeting of Congress on Wednesday, April 29. Ryan became House Speaker later in the year.
U.S. Rep. Paul Ryan, a Republican from Wisconsin, laughs with U.S. Sen Ted Cruz, foreground, during a joint meeting of Congress on Wednesday, April 29. Ryan became House Speaker later in the year.
JONATHAN ERNST/Reuters/Landov
Rugby players from New Zealand celebrate after winning the Rugby World Cup final Saturday, October 31, in London. It was the second straight title for the "All Blacks," who also won the event in 2011.
Rugby players from New Zealand celebrate after winning the Rugby World Cup final Saturday, October 31, in London. It was the second straight title for the "All Blacks," who also won the event in 2011.
Kirsty Wigglesworth/AP
Actor Benicio Del Toro laughs during a press event for the film "Sicario" that was held Tuesday, May 19, at the Cannes Film Festival in France.
Actor Benicio Del Toro laughs during a press event for the film "Sicario" that was held Tuesday, May 19, at the Cannes Film Festival in France.
LOIC VENANCE/AFP/Getty Images
Rugby fans laugh together prior to a Rugby World Cup match between the United States and South Africa on Wednesday, October 7.
Rugby fans laugh together prior to a Rugby World Cup match between the United States and South Africa on Wednesday, October 7.
ADRIAN DENNIS/AFP/Getty Images
Britain's Prince Charles laughs while visiting a research institute in Nelson, New Zealand, on Saturday, November 7.
Britain's Prince Charles laughs while visiting a research institute in Nelson, New Zealand, on Saturday, November 7.
EVAN BARNES/DPA/LANDOV