Here is a short video of a very active terripoo walking on a loose leash. This is from an in home dog training lesson. We even walked by a barking dog without much of a problem. This is a big accomplishment for such a happy and excitable young dog. I expect this dog will be doing much better with barking dog the next time I see it.
You will notice I do use leash prompts when training dogs. I think most people will have no problem using the leash in this manner. For those who do not like the leash prompt a well conditioned Heel taught with food can accomplish the same thing.
Teach your dog to Sit before you put it on the leash