How to approach your crush?!?

ok so i see this guy all the time at school! He is really cute and every time i p by he would always stare and act loud with his friends to get my attention.. As much as i was attracted to him i knew i would never talk to him because i dont have cles with him.. Well i guess he hd differend plans because last thursday he came up to me out of nowhere and tells me he sees me around alot and thinks im really pretty and he asks for my name.. well we said our byes for now and the next day i diddnt talk to him but i could see him looking for me... well today out of nowhere i hear my name nd its him! he just stand there with his arms open waiteing for a hug and of course you dont have to ask me twice....when i finlly go home and just when i thought my excitement was don my friend who was with me when he said i was pretty IMs me on facebook telling me how he was in her cl today and she started talking to him about me and how i wanted to talk to him and hes lik asking her like questions like were i hang out during school and he was like "waite tell me more because i like hearing about this girl" and when she would try to walk away he would continue to ask more questions................. as exited as i am i have nooooooo clue how i go up and talk to him tomoro!!! im good at talking to guys but not when i think they're cute or there could be something more...........HELP! what should i do tomoro? ...................................oh and sorry if this is long :)