i know there's nothing wrong with smiling, but lately i've noticed people find it really weird when i'm just smiling for absolutely zero reason. especially when i go up to an acquaintance i haven't talked to in a while and i'm just giving them big ass toothy smile. i would find it bizarre and will probably stay away from the person.
also, i do it in inappropriate situations, like when i'm getting scolded by a teacher or someone's talking about a serious topic. i can't help it; i smile when i'm uncomfortable and sad. i smile when a bad situation occurs so my mother asked if i enjoy sad things and if i need to be tested for antisocial behavior (like what, that's not how it works). i smile when i'm angry too, and my classmates and teachers (gently) tell me it's a bit creepy (which is fair, i suppose).