DOES HE LIKE YOU?
How can you tell if your crush likes you back? Myjellybean.com has some clues that say he might be into you.
Yak Attack
He might start talking loudly in your presence or start treating you as one of the guys. (Yes, this is a weird way to show he likes you, but it's one of the most common and strongest signals!).
Mumbly Joe
He might also become very shy and mumble when he speaks to you.
Flirt City
Then again, he could behave like a real Casanova, praising you for no apparent reason and straining hard to hold a sustained intelligent conversation, because he's so busy staring at your - ahem - assets. You could also notice that he's acting way more flirtatious toward you than toward other girls who are around.
His Friends Are Friendly to You
If his friends are paying attention to you when he isn't around (often a clue that this guy talked to his or her friends about you).
There He is Again!
If he always seems to be around (especially if you get the "instinct" that he's there because of you).
Perma-Grin
If he is smiling tons while listening to you, and seems to be listening especially "actively".
Staring Contest
If he seems to look into your eyes a little longer than normally.
He's Keeping Tabs
If he remembers stuff you said before and brings it up again (asking questions about something you mentioned in the past ) - shows he's interested in you.
TESTING YOUR SUSPICIONS:
If you think a guy likes you (trust your gut instinct, girls) but you can't be totally sure, try this: Give him your best smile. If he smiles back, or his face suddenly lights up, tah dah! He likes you. If he starts sweating and looks all flustered, he likes you even more. If his smile is the polite kind, or if he frowns or looks away, that's a bad sign that maybe he isn't interested in you after all.