That's exactly what I was wondering.

Some do's and don'ts

Play with her, don't try to play her. Make it easy for her.

Do touch her in a light and easy, non-pushy and non-threatening way, for example, take her hand in yours. If she doesn't want you touching her then you are just a friend. (translation: not getting laid)

Look her in the eye and tell her how being with her makes you feel and tell her that you could spend a lot more time with her. Tell her you want to be more than just friends. Tell her that you have a crush on her and want to get to know her better.

Even if you already know, ask her if she is married or engaged or anything like that. Ask her what she is doing for the rest of your life.

If you feel like a fool later, that's good too. Justify it by telling yourself that she needed an ego boost.

If you regret what you didn't do then you are just a big pussy. Everyone does things that they wish they could take back later, part of living. Join the living, get busy and do something but be nice.