Moving Their Tail Back And Forth Means They’re Not Happy
Unlike their dog counterparts, when cats wag their tails it does not mean they are happy to see you. Most often then not, when a cat moves its tail back and forth it means that they are not a happy kitty and would like to be left alone.
The action means that your cat is annoyed and it would prefer to be left alone. However, if a cat is twitching its tail, it usually means that it is very interesting in something, such as a red dot on the wall.
Hissing Is A Self-Explanatory Behavior
Most people know to back away slowly if a cat is hissing at them. And, yes, cats do hiss when they get angry at someone or something, but they also make the sound when they are feeling afraid or agitated.
Kitties will most likely hiss when they feel threatened by a person or another animal. They can either be approaching the cat too quickly or maybe you did something that the cat did not approve of. Either way, if a cat starts hissing at you, it’s best to not get too close and to let it calm down instead. They’re usually back to their “normal” selves in a few minutes.