Mr. Buckets of Fun / Captain Charleston
Here's the thing. Dancing isn't ever Tony's first choice, but that didn't mean he didn't know how to have a good time eventually. So, when it was announced that there was going to be a dance party? Well, he was curious to see who was going to show. He knew Tony would show. Because if there was a party Tony was more than likely going to be there. In truth? A bit of frivolous fun was probably what most of them needed. When he arrived, he scanned the room -- finding some of the usual suspects. However, at that very moment, not slinked in the corner on the fringe of the party hiding, he noticed an old friend. Or, well, old new friend? Words were hard in this situation.
But seeing Bucky show up. Putting in an effort. Even parting his hair for the world to see his charming smile. Something like pride welled up in him. Maybe it was unwarranted. After all, this wasn't his Bucky, but who wouldn't be proud of someone stepping out of the shadows and into the light? So, as Bucky considered his options, Steve casually saddled up next to him and said: "Can either of those really do much damage at this point?" It was an honest question. Alcohol didn't do anything to Steve. At least, that's what he was told. Super-soldier metabolism and all. Then he flashed Bucky that trademark Steve smile. The one that had been his even before the serum had enhanced things.