Hey guys, i've got a question regarding how to close with girls in college. oh and by the way, i'm looking for a relationship, not a one night banger.

I'll start with an experience of mine:

Doing laundry when a girl walks in and starts doing hers, she has trouble with the card machine to pay for it so I open. I do slight kino escalation; from slight bumps to holding her hand on the card machine (teaching her how to use it). As i come to the conclusion that she's enjoying it as much as I am, I ask for her number. she gives it to me, even punches in her last name on the contact. It was a wrong number. Was asking for it a bad move? Are there any good canned lines for college girls? Any other advice pertaining college would also be greatly appreciated. Thanks Seddit!!!