He lets Aziraphale step away, watching him and his labored breaths. His bravado is terribly, almost endearingly transparent, especially when Satan can tell that he has so little power to draw on.

"Oh, are we dispensing with civility so soon?" he says, spreading his hands apart in a wide, smooth gesture. "Here I thought we could get to know each other a little better, before I give you what you're owed."