It can be hard for some people to decipher what a woman's body language is trying to tell them. Other people just do not seem to have that problem, and that is why they never have a problem with getting women.
Here are few tips
1. Touching - If you ever notice that a woman is touching you hair and saying how nice it looks, or touching your arm as either of you are speaking. Then this is quite a good indication that they may have an interest in you.
2. If a woman starts to ask you about any women in your life such as a girlfriend or your wife she may be trying to find out whether the path is clear for her. It's even more obvious if she asks you implicitly and then shows subtle approval upon learning that you're single
3. If a woman makes eye contact with you it used to be a good sign of their intentions of getting to know you better. Although in today's society it is now just a polite way of talking to people. Don't automatically assume that her interest level in you is high if she looks at you directly while speaking to you.