Licking Themselves Clean
It is common knowledge that dogs lick their bodies to clean themselves. Is your dog dirty? If so, they will probably try to lick their body clean. It can mean that they are in pain as well. When a dog frequently licks their legs and paws, particularly near their joints, you might want to get it checked out by the vet.
Snarling And Showing Teeth
Dogs have different ways to show their moods. Of course, it is not positive all of the time. A dog that wrinkles their muzzle is one that feels aggressive. If they bare their teeth and snarl, you should probably do something about the current situation. Why? Well, they might attack at the first sign of provocation.