Re: OOC Bokuto no doubt dragged Akaashi and Kuroo (and probably Kenma by proxy) along to everything, wanted to play everything, got sad if he lost, but was just as easily hyped up again and probably wore everyone out like the toddler he is.
Victor no doubt hung around the skating rink as much as possible just to show off if only for Yuri
Todoroki no doubt dragged Bakugo out cause that's just what he seems to do anymore, and probably met up with friends for lunch/snacks or to explore the maze
Oikawa, Ushijima, Sakusa, Daichi, basically all my random volleyball boys were probably there in some capacity, either insisting others go, meeting up with friends, or potentially being dragged themselves.
Zack would've went to check it out and play some games, likely brought Cloud along to make him play too, probably won something big and obnoxious
Anyone else not mentioned could be there, just let me know