A sunflower “smiles” in a field in Tokyo on August 7, 2014. Some 20,000 sunflowers were enjoyed by visitors to the area this week. (Photo by Yoshikazu Tsuno/AFP Photo)

A zoo performer smiles as he puts his head between the jaws of a crocodile during a performance for tourists at the Sriracha Tiger Zoo, in Chonburi province, east of Bangkok,Thailand, June 7, 2016. (Photo by Chaiwat Subprasom/Reuters)

A man covered with mineral-rich mud smiles on a bank of lake Tus in Khakassia region, southwest of the Siberian city of Krasnoyarsk, Russia, July 16, 2016. (Photo by Ilya Naymushin/Reuters)

A woman with coloured powder smeared on her face smile as she celebrates Holi, the Festival of Colours, in Kathmandu, Nepal, March 22, 2016. (Photo by Navesh Chitrakar/Reuters)

Yuri Gagarin does not always show up in full-scale astronautics. In this picture he smiles during his summer vacation in Sochi, Russia in 1961 with sunglasses and sunhat in the camera. (Photo by Imago/Eastnews)

A child coated in silver body paint, smiles during the “Loucura Suburbana”, or Suburban Madness pre-Carnival parade, in Rio de Janeiro, Brazil, Thursday, February 8, 2024. (Photo by Bruna Prado/AP Photo)

A hungry cow smiles for the camera in Salzburg, Austria. One of a series of funny animal mugshots taken by Chanel Cartell and Stevo Dirnberger during their travels around the globe. (Photo by Chanel Cartell/Stevo Dirnberger/Rex Features/Shutterstock)

Vian Salman, center, smiles with fellow contestants after she was crowned the new Miss Iraq during the Miss Iraq contest in Baghdad, Iraq, Thursday, May 25, 2017. (Photo by Karim Kadim/AP Photo)