Mainly divided into the following two types:
1, they are in a good mood and feel very happy. The purring sound made by a cat is the sound produced by the resonance of the throat cavity when the false vocal cords vibrate. Whenever a cat feels satisfied, excited and relaxed, it will make this brisk purr.
2. It wants you to get close to it and touch it. When a cat wants you to play with it or express happiness and satisfaction, it will purr to attract your attention and be lively and loud. When a cat is lying beside its owner sleeping or being close to you, it can often be heard purring.
3. They are very comfortable. When you massage them, they will make a "purring" sound, which shows that they like your massage very much and feel very comfortable, which encourages you to continue to do so.
They like someone or something very much, and some cats purr as long as they snuggle up to their owners.
5. Sometimes when you stretch your legs, you will also purr when you are particularly lazy.
In addition, when it is sick or in pain, it will also purr. If a kitten or a big cat keeps purring under any circumstances, it may be a respiratory infection. This must not be taken lightly.
7, uncomfortable, sometimes the cat will snore when it is uncomfortable, it is using this sound to appease its emotions.
8. The loving mother cat purrs, the kitten sucks heartily, and the mother cat relaxes and makes a rhythmic sound with satisfaction. Up to now, we still don't quite understand how cats purr. Some people think it comes from somewhere deep in the chest. Even without using the larynx, the cat can still purr.
In most cases, the purr of a cat means that it is happy.
Summary: It is natural for cats to snore under human touch. If it is unfriendly, it won't snore because it feels unsafe. But if, on the other hand, a cat snoring means being friendly to people, it is meaningless. Friendly is only a necessary condition for snoring, not a sufficient condition. A cat snores even when no one touches it. It needs another cat to induce it. So, I have another inference: if there is only one cat in your house, it can only snore under human touch, so you think it is friendly to you. If you have two cats at home, you should pay attention to observe that cats will start snoring when it has nothing to do with you. At this time, this snoring can't be said to be friendly to you at all, but the cat's own psychological activity.