When dogs are in a mood, they may show some of the following behavioral characteristics:

1. Loss of appetite: Dogs may refuse to eat because they are depressed, or their food intake may be significantly reduced.

2. Changes in barking: Dogs may bark differently than usual, such as more frequently or sharply, to express their dissatisfaction or anxiety.

3. Destructive behavior: When some dogs are in a bad mood, they may vent their emotions through destructive behaviors such as biting things, digging holes, or tearing up furniture.

4. Excessive licking or grooming: Dogs may lick or groom themselves excessively, possibly because they feel anxious or upset.

5. Excessive sleep: Dogs may become lethargic and avoid unpleasant realities by increasing their sleep time.

6. Avoid interaction: The dog may avoid interacting with the owner or other family members, and even lose interest in toys or activities that it usually likes.

7. Changes in urinating or defecation habits: Dogs may urinate or defecate in inappropriate places in the home, possibly because they feel nervous or uneasy.

Please note that every dog ​​has a different personality and expression, so these performances are not absolute.