Repost from askseddit as I got no response.

To create a bit of a backstory, my university major has a kind of "retreat" at the beginning of the year. At this retreat there were members from the older classes that lead activities during the day with their respective groups. This went on the whole day. Fast forwarding the story a bit, I'll skip to the evening where there was a dance party.

At this point, I hadn't really noticed this girl who we'll call J. J was one of the "camp" leaders. All of the leaders were really going for it during the dance party and luckily, for me, I am a pretty good dancer so I started grooving as well. So the dancing is going strong for a couple hours when I start noticing J basically staring at me for a few seconds at a time. I'd look back and crack a smile as would she. After a few of those I came up to her and started dancing a bit more though, in hindsight, I should have had more physical contact and escalated.

Regardless, we lock eyes a few more times throughout the night as we're dancing together and across the room, but I never really increased the kino. I figured it maybe wouldn't be appropriate to get too flirty with one of the group leaders though there was definitely chemistry. She does mention though that she thought I was a great dancer. For the last song everyone gets together in a circle and sings, and J and I end up next to each other. The night ends there and everyone goes to bed.

The next day is the last day of the retreat. I didn't have much time for banter or to talk with her at all so I end up leaving without her number. The program leaders end up making a facebook page (on Friday) so I add her a couple days later.

I message her (yesterday) and ask when the next dance and singing party is. She replies positively and says that there's a dance party on Saturday again that the school is throwing. We say that we'll see each other there and then talk about which campus (my university has two campuses for classes) of the university we're going to be. She mentions that she's going to be at the south one which is where I was going to be as well so I tell her we should grab coffee after class. For some reason she doesn't reply so here we are.

I'm looking for feedback on how I should have escalated during the dancing and how I could have gotten more alone time with her. It may be that it wasn't a good opportunity with everyone there but I'd like to hear different opinions. I'm going to not text her regardless during the week and see if I can spot her on Saturday at the party.