Do you want to learn how dogs communicate? Watch two dogs play. Is their means of communication verbal or physical? Canines communicate in an extremely physical way. Humans, primarily communicate through words. Words mean something to us, but to an untrained dog, they are initially background noise. Dogs respond to body language and physical presence. Your body language tells your dog a lot about how you view yourself and how you expect him to behave.
New dog owners tend rely on words to get their dog to do what they want. When the dog does not “listen,” the owner gets frustrated. This is not the dog's lack of compliance, it is the dog not understanding what that particular word means. The early part of dog training involves the use of a lure (treat) to show and get what you want. By using the lure properly, the dog is shown how to move his body into the position that is desired. After getting the dog to do what you want by using ONLY the food, you can start adding a word that is connected to the specific behavior. It is not the word that is important at first. What is important is that you get the dog to do it every time; at first through the use of treats.