So, I think I'm starting to get the hang of this

. The other night I ended up at a bar after a local show with some people from a show earlier that evening. I must have been drinking a fair bit, since I was confident enough to get up on stage, and was dancing with girls. Before I knew it I am grinding a girl, and holding her and kissing her neck. We proceed to make out, tongue, and eventually go outside and continue making out for some time. It was last call, and either because my phone was dead or she has morals, she said to come back to the same place in a couple days.
The only problem is I was pretty drunk, not horribly, but I vaguely remember her face (HB7?), stature, and clothes. While I have a vague idea of what she looked like, it's not concrete, and I don't remember her name. While the guy I was with remembers her face, I just met him that night, and would feel weird bringing him along. So, what should I do exactly? I'm thinking I'll head there alone in the evening, and see what happens. Is this a good idea, and is there a particular way I should behave considering I'm pretty introverted while sober, and was particularly confident that evening?