May 8 marked the World Smile Day. A smile serves as a silent greeting and is regarded as humanity's most beautiful language. The Qingmiaohui Kindergarten in Kaifu District, Changsha City, launched an initiative titled "Love Starts with a Smile" that day. Through activities such as playing interactive smiling games and painting smiley face cards, the event aimed to guide children in cultivating a healthy and optimistic mindset. The photo shows children painting smiley face cards under the guidance of a teacher. (Photo/Li Jian, Hunan Daily)

May 8 marked the World Smile Day. A smile serves as a silent greeting and is regarded as humanity's most beautiful language. The Qingmiaohui Kindergarten in Kaifu District, Changsha City, launched an initiative titled "Love Starts with a Smile" that day. Through activities such as playing interactive smiling games and painting smiley face cards, the event aimed to guide children in cultivating a healthy and optimistic mindset. The photo shows children playing an interactive smiling game. (Photo/Li Jian, Hunan Daily)