There were times when a finger might have been lifted to scratch a nose, and if casual eye contact was made with one’s lover just then, the lover might accidentally take it to be the gesture, not at all dissimilar, for Now I realize I was wrong to love you. These mistakes were heartbreaking. And yet, because people knew how easily they could happen, because they didn’t go around with the illusion that they understood perfectly the things other people said, they were used to interrupting each other to ask if they’d understood correctly.