While again emphasizing the use of a surrounding as free as possible from distraction, start right from the beginning. Do only 60 second practices at first. Within that minute, call the dog, then reward appropriately when showing desired behavior.
Once the pooch starts to relate to the exercise, so the training periods would increase accordingly. One would also start making the practice in a more comprehensive way. You could start to include different ways of commanding. Also choose surroundings with potentially more distractions. Increase the distance from which you’re calling your pooch.
As time progresses, you’d want to go beyond specific time & places to exercise recall. Start including it in real-life situations. Recall, then immediately reward throughout these new experiences. You may start to smell different, but that’s the nature of doggie treats. As they say, “It comes with the territory”.
Although it may seem to many that it comes without saying, many owners miss the following. Makes sure that, as already alluded to, every recall session would a positive doggie experience. It is not to be the end of an interactive session, for example. If playing with your pooch, intersperse the recall session as part of the ‘play’ session.
In like manner, don’t use the recall practice session when wanting your dog to get back in a vehicle after strolling through nature. It’s while walking together that you would put it into practice. Every recall exercise is to only be geared toward having the pooch get praised while getting rewarded for its action.
Never ever use your chosen recall word while wanting to instill punishment on your dog.
If you’re bound to feel this way because during the recall session the dog doesn’t respond, then don’t punish. Just put the pooch back on the leash & go on to other things. Try it again some other place & time. One could always come back to the same place to try. It could’ve just been a matter of disposition.
Beyond recall, the next thing to work towards to, is acceptable socializing. How confident is your dog in different situations &/or surroundings? What about its level of friendly interaction with humans, unknown dogs &/or other animal species?