Catching Behaviour in Dog Training. There are as many ways to train a dog as there are dog owners. But one of the easiest positive ways to teach your dog a behaviour is by 'catching' him in the act. The concept is very simple: catch a behaviour and reward.  Rewarding your dog with a delicious treat makes it more likely that the dog will repeat that action again. This dog training method works very well for basic commands such 'sit' and 'down'. I use it a lot in my puppy school in Randwick, Marrickville, Leichhardt and Newtown.