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 Did you know your dog's tongue can reveal how hot they are? @passionatelypets shares four tongue shapes to watch for during warmer weather: Cool & Comfortable: When a dog is relaxed Panting To Pup sicles: Why Do Dogs Stick Their Tongue Out? The Cat and Dog House Black White Sexy 4 Pc Maid Costume AMIClubwear Why Does My Dog Sleep With Their Tongue Out? 10 Vet Reviewed Reasons Dogster