He was not a dove, therefore he did not coo. Though people might have been forgiving for thinking so at the pleased little thoughtful noise he made.

"I see..."

Crowley was so still, like a waiting snake unsure if he should go forward or back. He couldn't help but enjoy it immensely for reasons that were...well...frankly ineffable.

"And how do you propose to inspire in me..." He glanced over at him, met his eyes and let it slide down his form before meeting his eyes once more. "... a spark?" And he smiled, the perfect picture of angelic innocence.