Many animals are social - they live in groups. Dogs are social. When two dogs meet, they may growl. If they see each other across the street, they may signal by barking. They may raise a ridge of fur called a hackle - that's a signal, too.
Wolves are social and scent-oriented, too.
Before a hunt, they seem to romp with one another like puppies, play-biting and pouncing. Apes and monkeys are known to do this, too. Stop, look, and listen to the world around you, Bercovitch says. Notice which senses an animal uses the most. With a cat, sit outside at night.