obscure IOI's you've noticed

[Red]

I've observed that when a woman wants me to approach her, she will sometimes remove her coat, sweater or bulky top layer to better advertise. "Gosh its hot in here!" while never making eye contact, or otherwise showing a sign of interest. Previously I would have never imagined that this was a strategy and certainly others would tell you you're being conceited, but sure enough it always works out.

So I'm curious - What are some unexpected IOI's that you've discovered that aren't broadly spoken about?

 

[Red]

Also, unconscious things like playing with her wedding band after noticing you (Not addressing the morality or wisdom of proceeding on this one though).