Asking a random girl out

I was in line at a store and there was a girl in front of me who was attractive. Not just physically but the way she interacted with the store employees and people in general. It reminded me of some good friends I had who had awesome personalities. I know that's the type of person I want to be with.Here's the problem. If you see that in a person and don't know them, what's the best approach to not only talking to them but eventually seeing them at another time? via /r/dating_advice http://ift.tt/2ug76Hl