You can have all the signs for attraction but until you actually go over and flirt/ask for her number, you never know what her reaction/response might be?
You can do nothing and wonder what if or you can try and the worst thing that can happen is she says no or she has a boyfriend or whatever her excuse could be. By not even trying, you're denying yourself happiness and you have nothing to lose but so much to gain.
If you have no romance going on and she knows you back, you're at square one, where you started. But if you have no romance going on and she says yes, you've a lot to gain and maybe it could develop into something wonderful.
Thoughts on this people?