The Man In the Mirror

When talking to her notice the way she is sitting, her arms and legs. Slowly mimic her posture while in the conversation. This will form a bond with her and she will start seeing herself in you. Mirroring her posture makes her feel comfortable and it is quite the flirtatious gesture. If things are going well in this direction try changing your body posture and see if she follows in 5 - 30 seconds. If she does this it is a great sign.