The feel of it shivers up his spine, followed by understanding, and the rapid-fire of  embarrassment, frustration, anger, and - others. Other sensations.

But when he glances back at Aziraphael, there's a low red in his cheeks but as good a grin as he can manage on his face. And something, just a little, softening in his eyes.

One of the tangles comes loose between his fingers.