What is a sunny smile? What does a sunny boy look like?

A sunny smile is handsome. Don’t smile with your mouth wide open. Try to only show the four upper teeth and don’t squint. This kind of smile can actually be faked. A sunny boy is generally a boy who is not scheming, healthy, lively, good at some sports, and preferably a boy with a sense of humor. This kind of boys usually dress casually, and cannot be introverted, serious, or frivolous. There are quite a few such people.