It's customary to kiss the left cheek! It's a European thing(particularly the French!), to kiss the left, then right, then left again as a greeting among women, and family. I'm not entirely sure how this originated. I believe this is due to it being most common to be right handed, and therefore to use your right hand to reach out and shake the others' hand, or to place it on their shoulder to brace yourself. (I think it makes sense to switch it up if you're both lefties, though!)
Little tidbits: Throughout history the right side has always been favored! There were instances of beliefs that being left-handed was demonic! We shake with our right hands, because men drew their weapons most commonly with their right hand and this was an assurance that they were not going to draw their sword/gun on their company!!! =)
History, Discussions of conduct in French classes.
· 1 decade ago