I am like the other guy and I tend to assume that a girl being flirty is just being friendly (mostly because I tend to bring that out in both sexes for some weird fucking reason) - but some of the stuff you said has me thinkin'. There is a particular girl, I've seen here or there at this gathering or that, and she's most of the time just had an interesting/friendly thing going on with me where she will be crude as fuck and say horribly mean stuff, but it was all in good fun and I would try (poorly) to reciprocate. Anyhoo, I went dancing a few nights back and she was there, and I don't know what was up but something was weird, she physically touched me for the first time ever, and it wasn't like brushing up against, she grabbed one of my dreads and started playing with it, mentioning how much longer it was than hers (she also has dreads). Then at random points at the night she would grab me and whisper in my ear something like "I am so fucking shocked at you right now, I didn't know you could dance, I am really really impressed". Which threw me the fuck off because she never compliments me.
Anyway, that was basically it, I honestly had a lot going on that night so I didn't give it too much attention, but now I have a mild lingering thought in the back of my head. It doesn't matter too much, as I have plenty on my romantic plate, it just would be interesting if she was interested. Because she is really hot. Like really.