Girl stand close to me on the train

This was a few years ago, I was on a train like a subway or metro whatever its called where you live, a local train, and it was pretty packed. I was standing and then as some people got off at a stop this girl came and stood right in front of me. As I said it was pretty full but still seemed slightly unnecessary as there was some space but she was nearly rubbing up against me. She was a bit shorter so we never made eye contact. However I could get a glimpse of her facial expressions and body language. I take crowded trains often and have never had this sense before, but she held herself as though she was in a bed submissively getting fucked. To this day I feel like if I leaned in and kissed her it would be what she wanted. I since have experienced similar things with catholic women that kind of rub their vaginas on you when they hug you. But this was different she was fidgeting around like she really would accept being taken. Of course I didn't act, and as I got off turned back to see that while she was beautiful I personally was not so attracted to her.

I have an uncanny knack for guessing when women are borderlines, bipolar, or German, all from appearance alone, I'm not sure if I can add wanting to kiss a stranger on a crowded train to this list.