Hay guys n girlsi need help. this guy i like just sat next to me today and i didnt know what to say. ?

the only timei can talk to him is when he comes in for access but he has two other cles with me so i was wondering when should i talk to him when should i get his num. he is awalys arround his buddies n i am so embarsed to just go up to him with his budies right there listening to us talk what can i do. o n he prob wont sit next to me tomoro n access cuz it wasnt his home room. so wat im trying to say is when should i talk to him?