Aziraphale blinks. Well, that is not what he expected.

"Er," he says, "oh. That's, um, that's all right, then."

It's rather a relief. She may not have social graces or humility or a basic sense of decency, but at least she's on the approximate correct side of the fence. So long as she doesn't try to include Crowley in that.

He hesitates, studying her for a moment.

"Others will approach you," he says. "Some will want you to join their organizations. Most will be human."

There isn't really a question here; he's curious to know how she'll respond.