How to ask if he likes me?! 10 points to best answer!?

okay I've asked this question befor but ddnt get that many answers. I'm 13 and I like my best guy friend. he's 13. he's very quitet and has a phone but will rarely txt u bck. but for a few months he's been txting me quite frequently though... I want to tell him I like him but don't want to get embarrased because if he says no... nothing will be the same.. and he likes to tell his personal business to his friends. how will I tell him?