It means different things, depending on the relationship. You did not mention what the boy is to you.
He either likes you more than friends or he is a pervert that touches every girl by body language.
Probably means it wasn't an accident. ;)
pretty much Yes, it means he likes you.
The boy likes or is trying to get your attention. Or he wants to kiss her or tell her he loves her,
UM HELLO HE LIKES YOU hes totally flirting!!!
when a girl touches a guy leg with her legs underneath the table it just means she is interested in you and wants you to notice it.This answers your question whether that girl is interested in you then later you should go and see her.talk.
Run away.
That means that the boy really likes her.
He likes you
It means he wants to make out with u
Im sure you mean why do boy dogs lift a leg and girl dogs don't. Well, the answer would be because if boy dogs tried to "go" without lifting their leg up they would just end up peeing on their leg. and somehow they know that they dont want that.
It means he genuinely bumped your leg by accident and has enough decency and respect for you to apologise to you no matter how insignificant it may seem. He also really cares about you and your well being as well. What if he bumped into your leg and said nothing? That would make you feel like he doesn't care about your feelings.