Straightened Tail
Have you ever noticed the tail of your dogs go up in the air? If they do so, it means that they are excited or they trust you. Dogs frequently do that when they encounter an animal or a dog. If the tail remains up and unsteady, they could feel intimidated. A happy and delighted dog does have his tail up to the body. A tail that hangs low or placed between the legs can show insecurity.

Straightened Tail