The smiling is very much a cultural thing. Americans find it strange when Japanese and Korean women choose to talk in a very high-pitched voice, also; it's the same type of effect.
Americans will also laugh right up in your face; if they cover a laugh, that's considered rude and condescending. Cultures differ.
Americans will also laugh right up in your face; if they cover a laugh, that's considered rude and condescending. Cultures differ.