TRAINING YOUR JRT TO A LEASH
With most training, you have to assert from the beginning that YOU are the alpha...the one in charge. It is the same with leash training. Where it differs from other training is that, usually you set the pace. But in leash training you need to leave some leeway for the JRT to learn at THEIR pace.
There are no definitive rules for leash training. What works for one, may not work for another. What one learns almost immediately, may take another days or weeks to learn. What you need to keep in mind is that you need to be patient, calm, confident, again take it at a pace established by your JRT, and work at alleviating your JRT of any fears it exhibits. If you can do this, leash training can be a fun learning experience for you both.
First and foremost, execute your leash training in short sessions, and use lots of positive reinforcement. This can be a very emphatic "yes" when your JRT does well, coupled with lots of hugs and kisses, or maybe even a little nibble of their favorite treat. Just make sure that your JRT knows when it has done good, not just when it has done wrong.
To begin any training, you need to make sure you have the proper equipment. I can not emphasize this enough choker chains are NOT for leash training. Do NOT put a choker chain on your JRT. This will hinder more than help and will not aid in alleviating any of your JRT's fears or anxieties about the whole training process.
Choosing your collar and leash should not be a snap, or sudden choice. Some JRT's work well with collars, others not so much. My JRT's never did adapt to collars, and after months of working with them both, I decided to switch to a harness. I can not tell you what a world of difference it made. Before, with a collar, in the beginning stages, my JRT's would tug and pull so much, they would literally choke themselves. This was not acceptable. Using the harness made the process much more comfortable for them both, and afforded me a little more control than the collar did. So, choose your method wisely. And if a collar does not work, do not get discouraged. You always have the option of trying a harness.
In leash training, the one constant, other than the training itself, is that a properly trained JRT will walk to your side, with the leash constantly slack. They will not be ahead of you, behind you, or way off to the side. Also, the leash is not to be pulled taunt at any given time. This will help to establish the boundaries that are necessary for you to be in control, not your JRT.
Repetitiveness and patience are the two key factors in this type of training. Do not get discouraged or upset if your JRT resists at first, it is in their nature. Just keep repeating the routine over and over and most assuredly your JRT will quickly catch on.
Have your JRT sit, and then you proceed to walk a few steps away. Tell them come, and when they do reward them. If they do not do as told, and instead wonder, or get distracted, go up to your JRT, get their full attention, tell them to stay, and repeat the routine. Once they have executed the command and required results correctly a few times, repeat the process by walking further and further away each time. When they have done well, you will then allow them sniffing and exploring time. But. keep the leash in your hand, and the JRT close at all times. You need to let them know that they are still to listen, but for the moment they are allowed to wonder and explore.
Do not give up and do not become discouraged. Patience is the key role on your side of this endeavor, and it is a journey that you and your JRT are taking together. Just be consistent, firm, and in control. Allow your JRT to work at their pace, and you are sure to get them trained.