Jeanna's
Despite having just arrived and thanks to a last minute shopping trip with Rose Lissa was there. She was friendly to everyone, would have danced with anyone who asked her and made sure to wish the happy couple all the best even though she didn't know them.
Christine came alone, possibly with Allison and her family. She loves to dance so would have been open to any and all offers. She's friendly so would have been in a good mood and talked to everyone.
Natasha was a bridesmaid so obviously she was there and dressed as linked above. Clint was her date (I mean who else would it be?) and she danced with him and also was happy to dance with others too. And she was in a wonderful mood and had a large time. There also may or may not have been some sneaking off.
Finn came with Rey as friends (but who is buying that, I mean really) and Susan was with them, I think Lena okayed that up there.
Luke was with Brooke who helped him figure out the whole suit thing since obviously he's used to Jedi robes for formal occasions and that won't cut it here. He can actually dance believe it or not so he would have danced with Brooke and his niece for sure and anyone else who wanted to.
Gamora does not wear dresses. So she asked for an opinion and Clint came up with the idea that she should wear a black pantsuit and a bright red top underneath. So use your imagination but she looked freaking awesome. Clint, you might have a career in fashion consulting for alien assassins. She does not dance by the way so she mostly stood around and watched and drank and talked to the people she knew.
To the amazement of everyone that knows her including herself, Velma showed some skin. Of course it was orange but she looked adorable. Came with Daphne, if Sam was there, they would have met up with him at some point.