Would it weird you out to have a friend treat you too "formally"?

I think I treat my friends more formally than most teenagers do. That is, I thank them when they do small favors for me or compliment me, I apologize if I inconvenience or offend them, I greet them with a “hi, how are you?” etc. In short, I treat my friends with the same formal politeness with which I would treat a stranger. I know being polite is good, but I think it might come across as overly serious to many teenagers who are more goofy with their friends. Would it weird you out? Do you think it could be a problem? Or is this a lot more “normal” than I realize?