I really like this guy but hes not really into me what would you do?

Well, that depends on if you are close friends or not. Get to know him as well as you can, and spend more time than usual with him, maybe even be brave and call him. Be yourself around him. It should be easier to tell him you like him, or you could do what I did and have a friend of yours (who's also his friend) find out for you if you're too shy. If you're already like VERY close best friends, then just tell him, he will understand and if anything it should make your relationship stronger. Hope I helped:)