There are of course other reasons that it will do this such as when it is a kitten and noticing it is telling the mother cat everything. In most cases the mother cat will also back up again and let them know they are safe and out of danger. Most kittens can purr when they were only two days old and this helps them to communicate with their mother.

There are other reasons that cats purr and in the wild it is very common that a cat will purr when they are injured. This lets other cats know that they are in distress and they need help. A cat will let you know when they are happy and when they are not because they have a lot of emotion. If you for example accidentally put your cat’s tail they usually will snap at you at this let you know they are not happy. When you bet your cat and a beginning her this is a sign they are communicating with you and letting you know they enjoy what you’re doing to them.

Remember that it is very common for cats to put her and this is a way they can communicate with you and other animals. The basic reason for preferring is to let people know they are content and happy. Kittens also will purr when they are nursing because they are communicating with their mother that they are getting a proper nutrition. it is also very common that the mother cat will purr back at the kitten to let them know everything is okay and there is no danger.

source from: pet-articles

Excessive Meowing
More often than not meowing is cat’s way to get your attention. The meowing may be also be a sign that the cat is in discomfort or has a medical problem. Cats meow as a form of communication, as well. However, most cats meow simply because they are bored and want some human interaction. The solution is to provide the cat with an entertaining environment with more cat toys. Never pay attention to the constant meowing, as this will only encourage the cat to continue and will create an ongoing cat behavior problem.

Cat Biting
Sometimes cat may bite you while you are petting her. This is because is the cat becomes over stimulated during petting, and can’t quite figure out how to tell you to stop. Don’t panic. Slowly withdraw your hand and move away from the cat. If the cat is in your lap, pull your hands away and allow it to retreat, or stand up and let the cat jump to the floor. Learn to recognize the signals that precede biting: wildly flicking tail, ears laid back, their pupils dilating, or their body tensing. When any of these are noticed, stop touching the animal and allow it to move away on its own.

Chirping Sound
With un-altered females, a chirping type of cat vocalization is a signal she’s in heat (ovulating and ready for a mate.) They may also howl mournfully, if they are isolated from males. Another possible reason for a cat’s chirping, is if it’s excited by the prospect of a kill.

Cat’s way of showing Affection
Contrary to the popular perception, cats are not showing affection when they rub against you with the back of their head and the rest of their body. It’s just the cat’s instinct to mark you with their scent; they are actually claiming you as their territory. The only time a cat is truly showing affection is when they bump you with the front part of their head, known as head bonks, a cat behavior also called “bunting”. Some cats also drool while showing affection.

Cat Clawing
Cats often claw furniture or carpets. It’s just cat instinct to work their claws and mark their territory. Once a cat claws something their scent is left on that object so they will come back and claw it again. Trim the cat’s nails to lessen the damage.

Source:petandfish.com