How to ask a waitress to be friends with you outside of her work without sounding like a creep?

Local place has naked waitresses. I usually talk to one of them while I have a beer there. The problem is, I have never seen her outside her job, and I don't want to make what we allready have awkward. I just would like to also befriend her outside of work because she is such a great person

How to ask a waitress to be friends with you outside of her work without sounding like a creep?
Post Opinion