What a coincidence, because Ryoji is watching the construction workers too. He doesn't think they have anything to do with what he does, but it's still something to keep an eye on. It's certainly creepy, if nothing else.

Ryoji's just chilling with a textbook on a bench near the construction, pretending to be studying but keeping an eye on them. And as such, he notices the other person lingering around and wonders what they're there for. If Corwin wanders by him, he'll give the... being (something is not quite right about him) a smile. "Hello! How are you?"