What to do after dancing with the girl? How to get it from there to my bed?

Covid is gone and parties are back. I started going to my first few parties recently and have realised I'm pretty attractive, but my game is still a bit autistic because less experience. I'm bold and cheeky, so shyness isn't my issue, I just don't know what to do here;

One time I was in the line with a friend to get drinks at this club. A girl(A) came and danced up on me, she was attractive, but I saw her friend(B) in the back of the crowd, and her face dropped a bit after I reciprocated to dancing with girl A. It was cute as hell, so I pointed at girl B to get her attention and offered my hand, she held it and I took her from the line to the dance floor. Felt like a bit of a chad for completely blowing off her friend A and being the chooser. But after dancing for 5 mins, a few basic questions back and forth, she's breaking eye contact - looking down, smiling shyly, etc...

I get completely stuck about what to do next? We usually go to to these events by bus set up by the college, and the same buses bring us back to campus at 2am - so no leaving early to go to my place. I have to wait for those buses. I'm not gonna waste money on an uber back to campus myself.

in the situation above, I just told her I had to go and went to speak with another girl.

But I wanted this girl(B). She was cute as hell. What do I do in that situation in the future? What to do to pass the time and keep the game exciting for a few hours until the buses leave at 2am?

feel like it'd get boring to just dance for 2-3 hours together or smthing.