Leash pulling is a common problem among dogs, but it can be trained with consistency and patience. Here are some tips for training your dog to not pull on the leash during walks:

1. Use a front-clip harness: A front-clip harness is designed to discourage pulling by redirecting your dog’s attention back to you. The leash is attached to the front of the harness, which will cause your dog to turn towards you when they pull. This can help you to gain more control over your dog’s movements.
2. Start with short training sessions: Begin by practicing in a quiet area with few distractions, such as a fenced-in yard or a quiet street. Start with short training sessions of just a few minutes each, and gradually increase the duration and difficulty of the training.
3. Use positive reinforcement: Reward your dog with treats and praise when they walk calmly beside you without pulling on the leash. This will help your dog associate good behavior with positive experiences.
4. Stop and stand still: When your dog pulls on the leash, stop walking and stand still. Wait for your dog to calm down and release the tension on the leash. When your dog is calm, continue walking. This will help your dog to learn that pulling on the leash will not get them where they want to go.
5. Change directions: If your dog continues to pull on the leash, change directions and walk in the opposite direction. This will help your dog to focus on you and the walk, rather than pulling towards something else.
6. Keep the leash short: Keep the leash short enough to maintain control over your dog’s movements. A long leash can encourage your dog to pull and become more difficult to control.
7. Be consistent: Consistency is key when it comes to dog training. Use the same commands and techniques every time you walk your dog to prevent confusion.

Remember, training takes time and patience. With consistency, positive reinforcement, and the right equipment, you can train your dog to not pull on the leash during walks.