Your dog probably likes to lick because he enjoys the sensation of having something wet between his teeth. Dogs often enjoy licking their paws, ears, noses, and tails. They also love to play with each other, especially puppies who need lots of physical contacts. Your dog may also be trying to get rid of fleas or ticks. Fleas and ticks can live on your dog's coat and bite through the fur to the skin. Licking can remove these pests from your dog's body.