Here is a nice one when it comes to understanding a women’s body language.
Look at her eyes.
More specifically at her pupils.
The bigger her pupil dilation, the more interested she is. So if she looks at you and you can see that the round black circle in the center of your eye is huge, that’s a very good sign. Somehow, unconciosculy the more interested a woman is, the bigger her pupils will be.
And if you see two really big black circles, she either is on some kind of drugs or you can move right ahead and kiss her (or maybe more).