When you reach inside your underwear and furiously scratch your testicles. This isn't done on purpose for most of the time, a reason to be animaling is boredom.
n. The distinctive factors which characterize an individual animal. Akin to personality, it refers to the temperament, lifestyle, and social nature of an animal.
People often refer to their pets or other animals as having "personalities," but animals are not people or persons. "Animality" avoids personification and anthropomorphism, and thus is a more targeted conception of the unique characteristics of individual animals.