So I walked by a girl I've seen around at a party (HB7) the other day, and she was surrounded by 2 or 3 guys. The guys obviously kinda tried to flirt with her but it didn't seem that she was too interested; I'd say she talked to them as friends, still having a good time, though.

How would you open a girl that is shielded (even physically by them standing around her in a corner) by other guys, who are not real "competitors"? I don't want to end up as yet another guy fighting for her attention.