There's always that initial instinct to run that Sirius has to ignore. They've allied with Redbright, he has to remind himself, so if someone notices him, he doesn't have to run right away. Instead he trots over, allowing his tail to wag slightly. His nose twitches, catching the scent of magic and figures the man must be a witch or something. Or maybe it's just bleed over from where they are. He's not really in a position to inquire.

He pauses in front of Nightingale, looking up and giving another wag of his tail, as if to say hello.