How to communicate with your dog?

Although our dog does not emit any sound with their movements and gestures we know what you want to say. With his facial expressions you can clarify your intent.
Place the head or paw on the back of another dog : a gesture of authority, as saying " I'm in charge here ."
Collect objects in the mouth : an example of this is when the dog gets teeth belt to walk, this is a challenge of power and may indicate that the dog does not accept the human as pack leader .
Place the leg at the knee from the owner is a request for attention.
Wallowing on the back : it is a sign but satisfied and happy . Normally do before or after an activity you enjoy.
Scratching the ground and starting grass with legs: He's leaving sign that has been there.
We can also look at the set , which can express two intentions :

Direct gaze : challenge or response to challenge by another dominant dog .
Eyes narrowed : a submissive dog response to a challenge . Acceptance of submission.