hint hint and hint but never be the first to say it.
Get close to here and make body contact. When you make body contact ie your leg next to hers, foot right next to hers and other and she knows it. If she knows it and makes effort to get closer/ make more contact then you know you got the pussy on lock down.
sit next to her and then put your legs right up against hers. Then make it a point to put our foot right up against hers. then move it around and see if she lloks at you and makes movment back. If she does then the pussy is all yours. If she pulls away or makes it a point to make no eye to eye contact then you are a no go.