(Think of your face when you’re “talking” to a baby or your dog: your eyebrows rise, your eyes widen, and your mouth rounds, corners moving forward as they do when you say “Ohhhhhh.”) But usually that’s a sign of offense in a dog and is called an “agonistic pucker.” Any dog who barks at me with puckered lips gets my full attention. This is not a dog on defense; it’s a dog ready and willing to act on his threat—not fearfully but with confidence.
