Depends on the guy. Me personally, I am fond of straight forward people. When I like a girl.. I tell them, friend or not. If we are true friends we can move past it if she doesn't like me back.
I really need help, I like this guy but I don't know how to tell him without our friendship breaking. How can I tell him I like him?
Well you don't need to tell him, that might make it awkward and make him avoid you. If you show interest in him and he reciprocates, then there is a possibility for something more. Otherwise, just be happy to have a supportive friend which is also a great thing.:)