Stay consistent, consistently be the Phil that she and the group has always liked and enjoyed company with.
Give her time to process the information that you shared with her, without any wants or expectations so you will be calm, relaxed and naturally project your normal confident self.
Kind of like RF62 said, be nice to her and the group as you always have been but donít shower her with any extra attention, she will come around to you. Cause her to be curious as to why you are not paying extra special attention to her. She will come to you.
Whisper to yourself no wants or expectations
So does one of us get a prize if one of us is right?
Psst, if you have a buddy that you can trust and position him on the other side of the room, to observe if she is glancing or looking at you, you will find out fast if she is interested. People look or women quickly glance and away from objects of interest to them. Watch her non-verbal cues.
Just as long as she doesn't cross her arms to you and point in a different direction when you are near or are talking to her, you're still in the running.