Women also do a good job in catching their men's attention with movements of their lips. A strong lip flirting signal is when she would bite or lick her lips ever so slowly. It also works when she would drink from a glass or eat in a slow motion manner. Make sure this is done while she is looking at you, and not at somebody else!
But the best sign of flirting is when she laughs at your jokes and touches you from time to time. They even would pretend brushing past you accidentally to get that magic touch. Other signs of flirting that she would show is crossing and uncrossing her legs, leaning and whispering, dangling her high-heeled shoes at her toes, and always flashing a smile.
She's Saying Yes
It is a definite signal of invitation when she keeps looking back at you. A smile would strengthen the signal of attraction. You will know she is interested in your interaction if she keeps that eye contact even if she's playing with something with her hand, like her drinking glass or her hair. There is a certain glow in a woman's eyes and facial expression when she likes a particular person. Another sign is when she would step closer to you or touch you.
She's Saying No
The strongest sign that a woman is annoyed, uninterested, and bothered by you is a fierce look with the arms crossed. But there are women who are kind enough to be just civil, especially during a blind date with the wrong guy. Observe her eyes. See if the glow is there or if they are dull and inexpressive, even when she smiles (the smiles are usually forced). And even of there is eye contact, but she keeps on breaking it and tries to look around the room, she may be thinking of reasons to go home earlier than expected.
Female body language is not that difficult to read. If you know what a woman is thinking, then you will know which step to do: to approach her or try your moves on somebody else.