How do you know if your bearded dragon is deaf?

Um Bearded dragons don't really talk, but they give you signals. If they are hungry, they will stand by their food dish and stare at it. if they are thirsty, they will stand bye their water dish with their mouth open. If he wants to go for a walk, he will stand bye his door, waiting for you. If he is mad, he will lick you with his big sticky wet tongue!