There are many basic techniques, such as shaking someone's hand or rolling over, and it is quite easy to teach without extra help. However, there are some more complex techniques, like having your dog catch a Frisbee. In this case, a Frisbee will be accessories, and you will teach the dog to catch him by repeatedly practicing. Many different methods of training available, but for the most part, if you practice enough.
You can use something like a shock collar. It's not really very painful to the dog, and after two or three shocks, they usually learn to not get out of their area and will remain in it even when the collar is not attached. You may need to reinforce the behavior sporadically every few months or so, but because you do so, the time between reinforcements to grow larger and larger.
If you think about how to enter your dog to show some sort, they probably will have to go through some type of course. You can buy various accessories and create your own course to train your dog into a dog will only explore it at first.