1) Have a smile on your face. Not a nervous smile, but a confident, charming smile. Have the smile even if the woman is not looking at you. Having a genuine smile will help give you more confidence as well as create a good first impression.

2) Make eye contact if possible. It's not always possible, but when possible, do it.

3) Open up your body language. Think high and wide. Imagine a string holding your head up at the top of your head.

4) Walk over casually. A mistake I see all the time is that guys often walk too fast when they approach women. They wait 10 minutes to get the courage to approach, and when they finally do, they walk there quickly. This actually raises the internal alarm in a woman's mind. A casual walk there is much better as it will make her feel more at ease with you.