A girl smiles as her hair is blown by a strong wind in the Chinatown area in Yokohama, near Tokyo, Friday, January 27, 2017. (Photo by Koji Sasahara/AP Photo)

A Ukrainian serviceman smiles on May 21, 2024 during a moment of calm in the southeastern town of Orikhiv, Zaporizhzhia, which has been heavily damaged by Russian military strikes. (Photo by Reuters/Stringer)

American model and television personality Chrissy Teigen lights up the Empire State Building with her style and smile in the last decade of May 2024. (Photo by chrissy teigen/Instagram)

Participants are running in the “2024 Chosun Ilbo Chuncheon Marathon” held in Chuncheon, Gangwon-do on October 27, 2024. One participant is smiling brightly while raising his thumb. (Photo by Jang Yeon-seong)

A smiling gecko bursts through a gap in the bark to surprise photographer in West Java, Indonesia in the last decade of March 2025. (Photo by Dzul Duzulfikri/Animal News Agency)

One happy reveller smiled and gave a thumbs up to the camera in Newcastle, United Kingdom after receiving their A Level results on Tuesday, August 10, 2021. Students hit the town across the country, downing cocktails and letting their hair down after two years of studying during the pandemic. (Photo by Newcastle New Projects)

A South Korea fan smiles ahead of the Qatar 2022 World Cup Group H football match between Uruguay and South Korea at the Education City Stadium in Al-Rayyan, west of Doha on November 24, 2022. (Photo by Jewel Samad/AFP Photo)

Bjorn, aged 5, smiles as he poses with a Owl butterfly during an event to launch the Sensational Butterflies exhibition at the Natural History Museum in London, Britain March 23, 2016. The exhibition opens to the public on March 24 and runs until September 11. (Photo by Dylan Martinez/Reuters)