Also known as: 笑い, 笑み, スマイル, 笑顔, 笑顏, 守りたい、この笑顔, 笑, 笑容, 微笑み, 微笑, 微笑む, 미소, 守りたいこの笑顔, 満面の笑顔, いい笑顔
An expression showing pleasure, amusement, or happiness, usually with the corners of the mouth turned up, like this: 🙂.
If the mouth is wide open and the Teeth are visible, it may be a Grin.