just the next time you are talking to him (try to avoid facebook but if you are awkward i get it.) just pop up something like what do you think,(it is easy to back up becuase you can allways pass it off as a "just wondering). also depending on the dude you will have to take the initiative and you cant really ask without making it weird or feel momentarily uncomfortable, it allways happens even if just for an instant, but i guess that is what makes it special so go ahead ask him, best of luck.
It's easy, to tell him slowly start off by saying "What do you think of me." This way your switching it up on him, then if he says "I like you as a friend" just respond "Would you think of me as more then a friend." By slowly asking him questions about you will feel comfortable and so will he. Boys are not smart when it comes to asking questions haha so they won't even know you like them.
Ask him who do u like? And he could say you but dont worry if he says nobody because he may just be lying. After that he will most likley ask u who you like and you should say him. And if he knows how you feel he might tell you he likes you back. Good Luck :)