The Doctor doesn't stop looking the affable fool. Even if he doesn't stop considering the man. The man who drops a wall from around him, making The Doctor want to know exactly what that was. How. What kind of wall. Not impossible to feel through, but like a fine mesh through the space and the air. A hard line, and very strong, but not entirely imperviable.

He brandishes the tray full of drinks at the man. "Color of choice?"