2. She is trying really hard to get closer to you physically.
The more effort she seems to be putting in trying to get next to you, the more likely it is that she is sexually attracted to you. That’s not always the case, but most of the time it is. For example, if you are getting serious eye contact from a woman in a club and she is getting closer and closer to you, that is probably a GOOD time for you to try to take things to the next level.