In order to off leash train your dog you are first going to have to start along with right dog training tools. I recommend you have a few tools to teach your dog to walk by your side: a leather leash between 4'-6' long, a leash about 18" long, and a training collar. There are several of training collars from the choke chain to a pinch collar to a head halter. Each all those Dog Agility Training have their own pluses and minuses so work with the collar you are feeling most at ease with.

A leash or tether is a good tool to use, as you're trying to coach your dog good manners (not to beg at the table) and/or to prevent inappropriate disruptive behavior.
Some dogs have specific behavior points that must be corrected. For instance separation anxiety, barking, biting, and burrowing. Many of these are a consequence of lack of communication between you too dog. By giving your dog obedience training the problems can be corrected and future problems can be prevented. Should set boundaries for your dog showing what acceptable behavior is. Identify triggers that creates the behavior and we want you to deal all of them.
Dog agility training
Clicker training is a questionaire of operant conditioning where you use a clicker and reward the dog behavior tools for target behavior. The clicker is a small plastic device generates a distinct sound once it heats up is delivered.
You've probably seen dog agility training on video. The dogs run a course of tire hoops, tunnels, seesaw, dog walk plank, jumps, hurdles, weaving poles, using a 3-meter A-frame. Heeling, sitting, down stays, send-aways and also walking off leash additionally included.
Making sure you make the right environment for training is about more than just having a great bond in your pet. You have got to ensure you have the right training equipment, as well as a host that's low on distractions. Where possible, do with the money a good quality leather scruff of the neck that is secure and good. This should fit snugly for the neck, but it should cease too restrictive to compromise breathing.
Remember to go to agility competitions for dogs nearby. Watch the challenges and the process. See how the dogs do and think concerning your dog in the same occasions. That'll help you with your final decision.