Panting To Pup sicles: Why Do Dogs Stick Their Tongue Out? The Cat and Dog House Ever seen a dog flick their tongue and vibrate their jaw after sniffing something interesting? This is called the Flehmen response. Its a special technique dogs use to enhance their sense of smell, Why do dogs sleep with their tongues out? Snoozer Pets Why does my dog's tongue always stick out? When it's cute and when to worry AS USA Why Does My Dog's Tongue Stick Out? I Love My Chi