Oliver and OPEN
As was typical for a man more accustomed to caring about quaffles than clocks, Oliver showed up fashionably late for the party for his fellow Gryffindor. Dean didn't play while Oliver did, but he had a fondness for anyone who called the Tower their home. He brought Dean a bottle of Oak-Cured Mead (the finest from Rosmerta, who was still delicious all these years later) and a set of paintbrushes that he was told were quite fine.
He set them down at the bar and took in the tropical scene and nodded in appreciation. He liked the laid back vibe to the room, and if he noticed a lot of boys dancing together, he wasn't shocked or minded much. He poured himself a tequila and started dancing, moving his way towards the center. It wasn't a party of Oliver Wood wasn't there, after all, so this one needed to get started.