Look...text him late at night, maybe at 2 or 3 and tell him that you want to confess something ask him to promise you that nothing will change after that (only if he is your good friend) just tell him that you like him and don't text after that. If you don't have his contact you tell him straight away and then try avoiding him, if he comes searching for you then know that he also likes you (I'm sure he will do that). Be strong, be straightforward gather courage and tell him.
Good luck. :) Death-Wishes