Hw can i make girls like me?

here is the problem....i have a lot of friends that are girl but i don't have a gf....i don't kow if they like me or not but i all know is b/c i suck in making a move....dude can u teach me how to do that?? should i give them service or sth (i hate that though and i've never done it...but if i have to well then i have to)