[ Ah, yes, a classic technique. Aziraphale knows it well. Unfortunately, he's also a bit too polite and oftentimes lacking in general awareness to notice it in others right away. ]

Right, do stop me if this is too forward, but, I've been thinking. You do a wonderful job managing this establishment, despite all the limitations of, well, living on a...magical...island.

[ He clears his throat and folds his arms behind his back, very proper. ]

If you're interested, I would like to offer my services. You see, I've had a rare book shop back in my world for quite some time, and I do believe I have some knowledge that may be of service.

[ It would be more accurate to say he's ran a front for a shop for a couple of centuries and has been hoarding rare books, books of prophecy and misprint bibles for even longer, guarding them with any means at his disposal short of actual physical violence against anyone who may dare try to make a purchase. ]

What say you?