Make her think she's your girlfriend
From Create Your Own Story
You look at her like your confused, "I thought I was taking you out after this class was over."
Haily laughed, "why would you do that?"
"Because i'm your boyfriend" you reply. When you say that her mind is rearranged so that she thinks for the last year and a half the two of you have been dating, and make her convened she has found the man she will marry.
When she looks back at you she pouts, "Sorry Matt, I have to wait until the end of this class before we go."