When the dogs are hungry, they bring me the bowl and bump my hands until I fill the bowl.
When the cat is hungry, she pees in the laundry.

After I feed the dogs, they wag and give slobbery kisses.
After I feed the cat, she vanishes for hours.

Call the dogs and they appear before me.
Call the cat and the dogs appear before me.

Pet a dog and they roll over for more.
Pet a cat and they hiss. Or they purr. Or both.