Like some guys I'm terrible at picking up on clues and signs when a girl is interested in me. I've been told to see if she finds an excuse to touch you in conversation or see if she smiles alot, blushes and her eyes dilute. Personally I think the best way is to just go out and ask him believe me if girls did that to me I'd find asking girls out alot easier.
I don't know who she likes. Who do you think she likes? Actually, this is Wonder, and I do know who I like. Guess who!!?? And keep guessing. But, you can ask me if you really wanna find out.
the way she acts around you when she see you
if you really like someone you should become friends with him. If you get to know him more he may find he really likes you the way you like him.
when no 1 is arround tell her you like her and then ask her if she likes you
joke around with the topic until u find a point to be serious about it
flirt with him, try and hint .. and see if he does the same.
You ask.
It's OK for your friend to like him to. But if you want him to like you you must get to know him better. You might find out you don't like him at all after you find out what his personality's like.
Find out if the guy likes her back or not and if she really likes the other guy (ask one of her friends). Also you need to make yourself noticed and seem desirable. Then ask her if she wants to do something sometime.
in here facial expressions
If he treats you with respect. I know this from experance.
I've heard that they really like it when you know a lot about a topic he likes, and he really likes it when you know even more about the topic than he does