How legitimate are the body language signals women give off?

Do they just want to have sex with the guy?

Are there feelings involved? or is it purely subconscious?

Body language is easy, but only if you don't over analyze every single little thing they do, thats when it starts getting to you.

If she is attracted to you, she'll want to have sex with you. It's as simple as that. Feelings or no feelings, only you can answer that question because we don't know the situation. Body language signals are usually subconcious and they're not always aware of it.

Many a time have I done something based on a girls body language and shes asked me how I knew she wanted me to do that, some girls are pretty amazed by it actually