As if to compensate for their small size, some small dogs develop tough dog attitudes. Be prepared to do plenty of obedience training to curb their small dog aggressiveness. Mid-size dogs, on the other hand, are ideal for most kinds of keepers from children, adult to old people. As middle range dogs, they tend to get along with all sorts of training, environment, and people. Loyalty, sociability, protectiveness, gentleness with those that the dog is familiar with, fierceness to those it does not know and sometimes meanness when there is a perceived violation of territories are real to the dog that endears him to us but these traits are natural instincts practiced within the pack which by extension is given to humans. Attach the leash to the pup and encourage him to walk on his own. Do not hold the leash yet. Encourage the pup to come to you and when it does, give the pup treats. The idea is to get the pup get used to the idea of walking with a leash. Do this for a few days until the pup is used to walking with the leash. Whether the choice is to go for the pure or the mixed bred, find a dog that matches your energy level, one that approximates your characteristic or one the one trait that you value most. If you have a family, consider the one that will generally match theirs too. Love All dogs love, but some dogs have the tendency to display their affection better than others do. Either way, you should pick a dog that matches your activity level. If you love being outdoors, you should prefer large or mid-sized dogs that are known for their high level of activity. For generally low-activity level households, breeds with lower exercise needs are ideal. Taking this precaution saves you troubles and your dog, boredom. Men therefore have to be obeyed and would need as much cooperation from the dog similar to how the dog will respond to a pack leader in the wild. In spite of all these, dogs are predators. They have always been and even behind centuries of domestication, they have not totally lost the instinct. They respect hierarchy.