Signs of an angry dog:

1. The dog’s pupils will become enlarged and the dog’s eyes will stare at the target fiercely.

2. The dog will grin, showing its gums, and roar.

3. The dog’s nose will lift up, and wrinkles will appear on the bridge of the nose.

4. The dog’s hair will even stand on end, making it look very fierce.

Solutions to an angry dog:

1. Comb the dog's hair. Combing can also stimulate the dog's hair follicles and skin and promote blood circulation.

2. The owner can play games with the dog and vent his energy through the game.

3. The owner can train the dog more and teach the dog some basic commands, such as sit down, lie down, shake hands, etc.

4. When the dog is angry, giving some snacks to coax the golden retriever is the most effective way.

5. You can also buy toys that your dog likes to play with, so that it will feel happy and excited.