How to hookup?????????????????

ok ik this wiill sound werid but im dating my bestfriends cuz weve been dating for almost months and one day i was talking to bestf at cheer practice...ima girl btw...and i was telling her i wanna hu wif him but he dont make a move so with out me knowing she talking to him and he said tht hes wants to but he didnt think i would so shetold him tht he should go for it and he said he was but idk really how to lik wht to do or how farther to go???? plz help