well, i think that it means that they like you, or maybe they do just want to be friends, but you should totally for sure ask them!!!
it means that he likes you or he's interested in what your saying.
they are very happen about something
he probably wants to go out with u
first of all you guys are clueless! if she is talking about HOT guys around you then that probably means she likes you. that's what i did to the guy i liked.
If he always smiling at you then he probably likes you, unless he's always smiling.
they are talking about you!
not always
Yes, i think he does
Start looking for a pattern with the lip biting. Everyone smiles so he could like you but also could just be him smiling... Lip biting could be nervousness from liking you or could just be a habit he always does. Start paying attention.. does he do it when he's nervous (like if someone compliments him)? does he do it when he's concentrating or thinking (like in class)? does he do it when he's talking to other girls? does he do it when hes talking to other guys? does he only do it when he talks to really pretty/popular girls? There's gotta be a pattern to it....
It means she's smiling while she's talking, probably nothing more.
Because he likes to and so that people don't say he's mean
that he is probably on a boat
it means that you don't trust her
it could mean she likes u or that she just is looking at something else