One suggestion for people who are learning how to calm an anxious dog down is to see if crate training helps their condition. This will vary from each dog, so make sure you know in which state your dog feels the most comfortable. Most cases, when a dog is crated while their owner leaves for an extended period, they feel that this is their “safe zone” and are in a calmer stage than before.
Dogs that demonstrate the previously mentioned basic skills, as well as walking reasonably well on a leash and a few other minor tasks, can be tested for and earn the American Kennel Club's (AKC) Canine Good Citizen certification. While not a competitive obedience title, a CGC certification demonstrates that the dog is sociable, well behaved, and reliable in public settings.[1] Some insurance companies will waive breed restrictions on dogs with CGCs, and many states have passed resolutions supporting and encouraging CGC certification as a yardstick for canine manners and responsible dog ownership.
Teach your dog to “leave it.” Teaching your dog to move his nose away from food and other items can be beneficial in a number of situations, including when food is accidentally dropped on the floor during family dinner or when your dog seems interested in picking up something potentially harmful during a walk. To teach this command, do the following:
Of course, neither extreme is really true. All animals have some level of genetic constraints (that's why you don't see bloodhounds herding sheep or cats that help the blind navigate the street). You can nudge your animal in one direction or the other, but you're likely to hit genetic limits eventually in their behavior. Animal behavior professionals will help you set realistic expectations regarding what can be changed.