He stops in front of one of the cameras, directly in front of it, before turning his attention to...well, to anyone else it would just look as if he were having a glaring-staring contest with a camera. But he knows that what he's doing is trying to burn a new image into the camera feed. It's difficult, because he usually just uses this power to entertain his sister or Eleven. Occasionally for his minor benefit. But this is important.

Once that's done, he continues on their way. A little winded, but nothing he can't handle. "You're sure?" Genuine concern here. He's seen what happens in The Bath.