Cat Talk: For instance, you can talk to your cat. Some people feel silly speaking to cats, because they think animals can’t understand them. These same people may feel comfortable carrying on long one-sided conversations with infants. Cats do receive information from your conversation: praise, comfort, and a sense of security.
You can get information, too. The more cats are spoken to, the more they will speak back. You will learn a lot from your cat’s wide vocabulary of chirps and meows. You will know when it is time to get up (at least in your cat’s opinion), when your cat is feeling affectionate, or when your cat is feeling critical or threatened, or is in pain. Your cat doesn’t necessarily have something urgent to tell you; a passing meow in the hallway may be a simple hello. Source: Fact Monster