Your a gay male and you fancy your straight mate what do you do?

It's so hard to say! Im in the same situation, but i think we both secretly like one another... The only think you can do is to see if they feel the same, sleep over, get drunk, if they come on to you... go along with it, if not and there's nothing there at all then i think you've got your answer... You could tell him you like him when your drunk as well, that way you've always got the alcohol to blame it on ;)