How do I ask a friend I know from gradeschool? We both just graduated from college.?

I'm 25 and I just graduated from college. We were in the same gradeschool and high school, but I've never made a move. We are both single now and we still hang out with the same friends. We are grabbing drinks with our friends tomorrow night at a bar. I'm thinking about just talking to her tomorrow night and get a vibe. Then maybe ask her to hang out some time and go from there? Thanks for the advice!