Help!!!!!!!!!!! Boyz Boyz Boyz

ok, i like my best friend Brett,and i want t ask him out. But im not sure if he likes me all that much. How can i find out if he likes me cuz he asked out my best friend and lied about ti and asked out my other friend. He got rejected twice. He's in 5 of my classes and when we c eachother, we have this dumb little reaction like i say oh no and he says oh yeah. We walk with eachother to ou classes and i say hi to him in the morning at his locker. So HELP ME!