What’s Your Cat and Dog Thinking?

From a New York Times story by Emily Anthes about her cat and dog, both of whom are skilled at making their needs known:

My cat is a bona fide chatterbox. Momo will meow when she is hungry and when she is full, when she wants to be picked up and when she wants to be put down, when I leave the room or when I enter it, or sometimes for what appears to be no real reason at all.