[Anticipating that this might turn into an actual conversation and not just a passing exchange, Van takes a sidestep out of the path. He almost crosses his arms, but -- no. That projects disinterest. He covers it up by hooking one thumb in his pocket, and checking that his hair isn't coming loose with the other hand. Concerned about impressions, but casual. Perfect.]
Nothing. They know nothing.
I'd hope you don't know that from experience.