Ok so my crush just asked me out and he's my first boyfriend but im not his first girlfriend (many ques)?

ok so this boy finally admitted he liked me back so we going out when we get back 2 school but im so nervous. idk how im supposed to hug him, like why my hands should go or anything. idk how im supposed to act around him or how its gonna be. i get erflis in my stomack everytime i think about it. can sum 1 gimme advice on wat i shood do?