So I normally just walk up to guys I think are cute in bars and try to chat them up. But I've never understood how to play the more passive game, where you act in a way as to get guys to approach you. I hear my friends talk about doing the eye-flirting thing, but how does that work?

I was at a bar last night and a super cute guy was there. He was at a table with a bunch of friends though, and I generally avoid approaching guys like that since it seems sort of rude and intrusive. But he was looking at me all night long too! Should I have just bust in and interrupted his group of friends? Should I have tried that eye staring thing? How do you attractive ladies of groupthink get guys when you're out on the town? (Or, how do you attractive gents of groupthink decide when to hit on a girl?)