How can I lose my virginity at a party, im 17?

Most of my friends, when they go to a party, end up making out with a girl. its called pulling. Most girls do it, its not slutty, its pretty normal for girls to pull a guy or two on a night out, but tey never pull me and I never manage to pull a girl, sometimes pulling leads to sex or a relationship, id like both but I dont know what to do. Like, Im talking to a girl, and I dont know how to make the jump from talking to kissing her, what do i do?