Walking a dog that pulls on the leash can be exhausting and frustrating. To train your dog to walk nicely, start by using a short leash to maintain better control. When your dog pulls, stop walking immediately and stand still until they return to your side. Reward them when they walk beside you without pulling. Practice this consistently during every walk. It may take time, but with patience, your dog will learn that pulling gets them nowhere, while walking calmly leads to rewards and fun.