In Brazil, it's polite.
in Kazakhstan we have some restrictions!
It is very common to kiss and hug the relatives when you meet them in Ukraine, but I don't like this tradition. Maybe I am too introverted. And I smile when somebody kisses or hugs me, but this smile is not sincere.
shake hands duh
I can hug my the closest friend, but I never kiss her and she never kiss me too. We don't like it.
In Vietnam, it's impossible when you meet a friend. If she (he) is your best friend, you can.:D
In Russia men always hags und shake hands not only friens. It mean HELLO. Women rarely let kiss or touch them, only relatives or close friends. But Russia is so big and custom so differnt.
We hug and shake hands but for kiss we have some restriction.
I don't like it. I think it's too familiarly.
When I meet close friends we hugh and kiss us - also relatives.