Make him interested in you. If your friend doesn't mind at all. because maybe she likes him too, but knowing that you like him, she said that she doesn't like him.
If your friend likes him back, back down. Risking your friendship is not worth it. If he likes you both, but your friend doesn't like him, tell him. If he ONLY likes your friend, don't do it, as he'll use you to get to your friend.
talk to your friend about it honey, if she likes him back off
You don't
it depends if the boy you like likes you back.
Warn your friend about your brother and hope she listens. When she learns you are right be there for her.
have a friend ask him for you if he really likes you...or you could flirt with him and see if he flirts back.
Ask him if he likes your friend and if he doesn't, then you ask him out or something like that, but if he does, hook them up and be happy that they are happy.
ask him when your alone
Maybe because he likes her back.
Ummm, go for it!
Send a friend to ask him
You can't control who he likes and doesn't like. Just know that if he's with you, then he obviously likes you more. As long as your friend doesn't like him back, your relationship with your friend should be fine too.