Ok, so on Sunday I went out. Effectively by accident I ended up with 3 girls and 2 guys I'd never really met at the end of the night. One of those girls has a bf, one is apparently interested in someone else and impressionably mute (Didn't even say hi to me when I joined them, that stung

) We walked those two home. They aren't the reason for this post. The other one is.
Ended up walking for about 45 mins with the 2 guys and her to get something to eat (4am bank holiday sunday, not many places open.) We were all fairly blasted, so I'm at my chattiest. She seemed to linger back to talk to me a little more than the other two, friends of hers.
Since then, we've chatted a little on facebook. I've asked if she wants to come out for a few drinks on Friday night, I'll be out anyway. And I said mentioned that I'd noticed her around where I work a few times. Apparently that classes as "sweet" (Argh, not this direction again...)
If she comes out, or even if she doesn't, any suggestions anyone can offer me?