Or perhaps his smile was his way of countering my reading tit for tat with the unstated suggestion that, much as he’d been caught trying to affect total casualness on the face of his offer, he too had found something to smile about in me—namely, the shrewd, devious, guilty pleasure I derived in finding so many imperceptible affinities between us. There may have been nothing there, and I might have invented the whole thing. But both of us knew what the other had seen.