

I am an american and I have lived here my whole life, and I never got this. Almost every person I know IRL except me smiles with all their teeth out like a fucking demented shark or something, and if I dont show my teeth like Im about to bite someone then other people chide in like “come on you arent even smiling!”. For some reason americans just bare all their teeth like dogs when we smile and its disgusting and weird
Im not particularly conscious and I do sometimes smile with some teeth showing, like if I was laughing super hard and my teeth just happened to be showing I wouldnt try to hide it. But if I am, say, taking a group photo, I dont smile with all my teeth out. Its just weird to me.