Why Does My Dog Snore So Much? Facts About Dogs Tongue You Did Not Know MyFurries Blog Ever seen a dog flick their tongue and vibrate their jaw after sniffing something interesting? This is called the Flehmen response. It's a special technique dogs use to enhance their sense of Dog Body Language #6 Sometimes dogs flick their tongues or lick their lips at times that are not associated with eating or drinking. It often indicates that they are uncomfortable. Next time Why Does My Dog Sleep With His Tongue Out (Explained & Answered) Why Your Dog's Tongue Might Be Their Most Important Body Part Kinship