Elise Broach said this quote

“ He remembered hearing Karl tell James once that it was hard for people to ever know what they really looked like. Reflections in mirrors weren’t accurate, Karl said, because when you stared at yourself in a mirror, you subconsciously composed your face in a way that wasn’t your natural expression.Marvin wondered it that was true when you were with strangers too. Maybe you only looked like your true self with the people you loved. And maybe that was a face you yourself hardly ever got to see… ”