Honestly, his outfit was what had first drawn her attention--it's far more intricate than some of the others here, and seems to be based on a creature. She thinks about asking what, but is distracted for a little while before she catches sight of him again, this time against a different wall. But he's looking out at the dancers with what she perceives as interest, and she thinks that's a good excuse to approach him and strike up a conversation, perhaps while joining in.

He seems to have other plans. Diana is visibly surprised beneath the mask, brows rising and stride stopped short. She doesn't immediately realize what he's saying no-thank-you too, and her tone is confused. "What?" Not the most eloquent response, but he's caught her off guard.