There are several signs that your pet is enjoying agility training and benefiting from it:

1. **Enthusiasm**: If your pet approaches the equipment with excitement and eagerness, it’s a good indication they are having fun. Look for wagging tails, jumping, or playful barking.

2. **Focus**: A pet that is engaged and paying attention during training sessions shows they are mentally stimulated and enjoying the challenge.

3. **Willingness to Participate**: If your pet willingly navigates the obstacles and seems excited to try new skills, it suggests they find the training enjoyable.

4. **Positive Body Language**: Relaxed body posture, happy facial expressions, and an alert demeanor indicate that your pet feels comfortable and happy during training.

5. **Playful Reactions**: If your pet occasionally breaks into play after completing an obstacle (like bowing, running in circles, or playfully nudging you), it’s a sign they’re having a good time.

6. **Improved Performance**: Noticeable progress in their ability to complete obstacles more quickly or accurately can suggest that they are benefiting from the training.

7. **Calm After Training**: After a session, if your pet is pleasantly tired rather than overly stressed or anxious, it indicates that the training was both enjoyable and appropriate for their energy level.

8. **Bonding Time**: If your pet seems more affectionate towards you after training sessions, it reflects the strong bond formed through positive experiences together.

Keep an eye out for these signs, and always adjust your training sessions to ensure they remain fun and engaging for your pet!