After food, after the gift of a new toy, after a play session or a swim, in the middle of a cuddle that gives dogs such bliss, Trixie turned those soulful eyes on you and all but spoke with them, or gave your hand a thank-you lick, or nuzzled her cold nose into the palm of your hand. As surely as dogs read us and, by countless telltales, know our moods and feelings, so we can read their telltales if we put our minds to it, and perhaps gratitude is the thing we see most often.

