Purring is often associated with contentment and can be a sign that your cat feels safe and comfortable around you.
When a cat kneads you with their paws, it's a behaviour carried over from kittenhood when it kneaded its mother's belly to stimulate milk flow. It's a sign of comfort and trust.
Cats might gently bump their heads against you, which is a sign of affection and a way of marking you with their scent.
Cats might bring you "gifts" like toys or even their prey. This is an instinctual behavior showing that they consider you part of their family.
If your cat follows you from room to room, it might be a sign that they enjoy your company and want to be near you.
When a cat rubs its body against you, they're marking you with their scent as a way of claiming you as part of its territory.
Cats might engage you in play, which shows they enjoy interacting with you and consider you a source of entertainment.
Cats are territorial animals, and when they choose to sit or lie down on you, they're essentially marking you as part of their territory. If your cat chooses to sit on you, it means they trust you.
If your cat starts using unique meows when interacting with you, it's a way of expressing their communication. They're making an effort to engage with you.