"Okay," he says, and then in his best attempt at trying to be Crowley, all cool and nonchalant: "Think I'd make a good you walking down the street, no one'd even notice the difference."

Then he wrinkles his nose, a thing that Crowley never does, why the hell does Aziraphale think he does this?

It's about as good as his magic act, but damn the boy tries.