Well, if I was my dad, I'd probably say....In Europe, people have manners.
I dunno if I've ever had that sort of thing on my own, though. I've never been out of America either. :D Oh; it isn't really appropriate for here, but recently I learned about something funny and painful-sounding that Arabs do. Eek.
A friend of mine told me that in...either Korea or China, I believe, that when people greet each other when they're out and about in the morning, and instead of saying "good morning!" I think they say "Have you eaten?" And they don't expect you to answer them.