"Try me."

It's a gambit that might not pay off, but he's willing to try: sitting there, leaning toward her across the desk, a pleasant look on his face. He doesn't have her on the hook - that much is obvious - but if he lets her ruminate on it, maybe something unexpected will come out.

She's already shown a propensity for talking out the possibilities. Now he just needs her to think about the ones she didn't put in her report.