It’s important to remember that cats aren’t nearly as domesticated as dogs so early socialization is CRUCIAL for a cat’s development. And don’t forget that felines are probably just as expressive and affectionate as canine companions. For example:
Purring can be a self-soothing behavior in addition to a cat trying to tell you to continue what you are doing whether it be petting her or just sitting near her. It can also be a sign that your cat is in pain.
When a cat rubs herself against you she is hugging you.
Slow blinking means that the cat trusts you. Think about it. Cats are both predators AND prey so if they are willing to close their eyes for an extended period of time in     your presence, they feel safe.
Cats ‘meow’ as a form of communication to humans as this is a behavior only seen in the domesticated cat.
Cats can suffer from reactivity also like dogs. Be careful to consider all environmental, physical, and physiological factors in your pets when dealing with a behavioral issue as cats can exhibit aggressive behavior for several reasons. Before you decide that the behavior is play aggression, it’s important to rule out other potential causes such as fear, pain, illness, redirected aggression, petting-induced and so on. Lastly, cats are not adept at reading our social cues. So, using a stern voice, stomping, clapping, spraying, and yelling will only make your cat afraid of you which is why she probably startles and runs away when you think she is actually understanding you.