First of all, be yourself. If your crush doesn't like you for you, he's not worth liking. Second, find out what your crush is interested in. If he/she was interested in Basketball, ask her/him about upcoming games or whatever. Be funny, and bring out the talents you know you have. Pretend you are his/her best friend, cheer them up when he/she is down, tell them jokes and stories. If you just be yourself, your crush will notice that. If you are a funny person, he/she will notice your humor. Nice, same.
Just be yourself!
they probably like you back.
Flirt back and make him want you.
if your crush knows you like them AND they like you back then you can gradually talk about dating them. if they have said they dont like you back then dont bring it up again
by being beutiful
If they like you back
If your crush knows you love her even though she doesn't like you there is not a way to make her love you back. Love is something that naturally happens between two people. If it is meant to be it will be.
yes
That means that he wants you back but you get a guy and make him jealous
a crush
Find someone new
make him like you or just get over him
Ask his/her friends and look for an answer but don't make it obvious you like him/her, unless they know, but dont make your self pushy to know the answer, take things slow, so he/she doesnt get freaked. Source; Had 6 boyfriends ;)