He nods, not quite in thanks, but acknowledgment. It's a pattern he understands, and doesn't begrudge it. He's a fan of as few strings as possible, himself. Severus hasn't been over to Badside, and isn't likely to, just from having heard of the reputation of the sort of people that congregate there, but it's an all right mental note if he sends someone fetch.
no subject
If that's it, he'll be on his way.