Warning Signs

Ears
When his ears are back, a cat is angry or being aggressed.

Or he could be listening to a sound behind him.

Eyes
When a cats eyes are wide and there is light, he is being provoked or he is playing.

Tail
When a tail is too fluffed up, bad sign!

The cat is scared.... Or anxious.

Some cats are naturally fluffed up, indicating a furrier breed.

When a cat's tail is moving, they are irritated and don't want company. It's best to stop children patting cats when their tails moving, to protect them from being scratched. They are pleased when their tail is high and still, or sometimes shaped as a candy cane.