my friend dated this one girl who we went to high school with. shes cool and really pretty. anyway they broke up and she dated another guy and that ended. i saw her profile on ok cupid(dating site) and told my friend. he said i should ask her out on a date but in all honestly not sure how i would approach the subject with her. I know who she is. I have hung out with her through mutual friends multiple times. We have always gotten along well

what would be a good way to talk to her on there and approach the subject?