Tish's Adam decided against dressing up. He's awkward enough as it is. Why make himself even more uncomfortable? He dressed like a Winchester so layers. Basically, the jacket he went to Hell in, a band tee and jeans. He's bad at people after so long in Hell and with Michael so he won't go out of his way to talk to people. He'll loosen up a little more around Steph.
Booster reminded Ted that sweatpants are bad. He didn't want to do a suit either and decided to be casual in this but with more blue and gold. He drank. He danced. He flirted. He spent most of the night with Ted.
Cheryl is definitely trying to do normal things and would've wanted to check this out. She didn't participate in the lock and key thing but she'd be there to have fun. She'd dance and stick with mocktails and soda and she would attempt to flirt but she's terrible at it. She wore this
Roy is new and wanted to come to this but didn't want to do the lock and key thing. He might feel a little out of place and kind of lonely. He might even be eyeing up the bar. He'll try and hide all of that by flirting and dancing. He also tried to clean up.