I don't know... I'd feel awkward giving people titles like "Miss" and "Mister" if they're less than 20 years my senior, you know? It kind of makes the age gap obvious. I know titles/suffixes exist in other languages, like "obbah" (Korean), "kak" (Malay) and "senpai/san" (Japanese), but in English? Geee. I don't know. You definitely won't catch me calling an upperclassman Mister-something, though. In fact, I never call people by their last name unless they're close to me. Kinda funny isn't it.
But anyway. Back to traditions and customs.
I don't know if anyone else does this, but in my family, when we have guests over we tend to make ourselves busy instead of sitting down to relax. It's not entirely a show or facade per se, but it is a way of telling the guest that everything's under control - we're seeing to the drinks, food, room (if said guest is staying the night)... basically the guest's overall comfort. This doesn't happen in most of my friends' families - they tend to just... relax. I did a bit of research and found out that this whole "putting up a busy front" thing is actually characteristically Japanese. I never knew. Guess it runs in the family.