hey dude i actually came across the same situation as you the other day. i was day gaming then i saw the girl i hadnt talked to in over 8 months shes super cute. obviously we were in good terms but we just lost contact in this crazy world. so i direct approached and all i said was hey ! look whats your number and ill get back to you. i said i got places i need to get to. number closed her with a couple of words. . Reason i done this is she was expecting me to be an AFC and sit there for a bit trying to rekindle the friendship. If that happened i would of instantly given myself away to her and i would become her bitch because she knows im not getting any pussy and im relying on rapport that was developed 8 months ago to somehow save me from my no sex patch. She is just another girl walking by, so keep it super short and super simple, she will notice your an alpha now and you had the opportunity to talk to her but you didnt take it. I didnt follow up on my girl but i would have txt her for a date and see if she would chase me up on a 2nd date that way i can manipulate her in a 24/7 bootycall. I noticed that this is a dangerous situation as you can easily be manipulated by someone you once knew if you give them attention, make sure she is ALWAYS chasing if you want to slay her.