Kate Bishop and Castiel
The handsome gentleman in the trenchcoat, wings, and silver mask cae over to her, and Kate felt her back straighten just a little. She'd been thinking maybe it was time to get a drink, but suddenly there was someone greeting her. Kate's smile brightened considerably and she nodded.
"Hello, Castiel. I'm Kate." It felt weird to greet without, like, a handshake or something. A bow? Curtsey? Something??