So, I have met this girl today. She is interesting and this is my 8th cold approach and I had this question in mind, how to ask her if she is single without giving my power away.

At first I thought she'll tell it by herself if there would be any, but she hasn't mentioned it yet. I did try those push pull lines "I was gonna ask you out, but that look made me change my mind" and she started smiling and dogged it, she is playing it smart. Any suggestions??