Hana obviously went. She wore something comfortable as well, with chucks so she could run if necessary because running is fun. It is highly likely that she took Gabe's lap as a seat if there were none left. She was talkative the whole way there and probably really annoying.
She floated around the party a lot, and had one or two drinks which is all it takes for someone like her to get a bit intoxicated. She stuck mostly with the other WB kids but had no trouble talking to everyone else and saying oh yeah, I know so-and-so, obviously until it all went to heck and they had to get out of there.
Depending on what else happens etc, Hana may or may not go with Alec to another bar.
OBVI I'm down to thread and whatnot because that's what I do. >.>