It would probably mean that she is interested or, most likely, not interested. If it's playful, then she's probably interested.
If you are a guy... means she wants to do dirty things with you. If you are a girl... its rude. She's saying f you basically.
It depends on what he is doing. some boys pick on you to show their affections to you some times
Source code
Lack of respect? Horseplay? Depends on the circumstances.
yes or the guy is just flirting with the girl
Probably the guy that picks on you likes you and he is jealous of his guyfriend that he is with you. So you probably have a big guys situation going on.
He is hitting on you - trying to turn you on.
That that girl thinks that that guy is handsome.
It most likely means he likes you
It means he loves you. Go ask him if he has a ring on him.
it means that the guy or girl is with another guy or girl at the same time that they are with you
The had sexual intercourse with that guy or girl