I recommend that you begin teaching your dog how to sit and stay prior to beginning any leash training! Having a reliable sit and stay will enable you to ask for this command if your pup starts pulling on the leash. This will help you refocus his attention and help him get back to your side! It is also safer to have a dog that has a reliable sit and stay, so that you are not pulled out into traffic while walking together! Leash training, like all dog training, requires immense amounts of patience on both your parts! But, the payoff will be a well-trained dog that all of your friends envy, and builds a relationship of love and trust! So, grab your clicker and a pocket full of treats and get out there! Have some fun together while learning valuable skills! When your dog has mastered leash walking check out loose leash training!
Take it outside. Finally, you’re ready to test your puppy’s skills in the Great Outdoors. There will be new challenges with this step because all the sounds, smells, and sights your puppy encounters will be intriguing and new to him. Be patient and keep the first walks short. While you’re on a walk, if your puppy looks as if he’s about to lunge toward something or is about to get distracted (you’ll notice this because you will keep your eyes on him at all times), make your cue sound and move a few steps away. Then reward him with a treat for following you.
Indiana is one of the states that has a restraint statute, which means that dogs must be restrained at all times. Otherwise, if the dog bites a person when not restrained the owner is subject to civil liability and criminal penalties. (Cite needed; definition of "restraint" needed; discussion of local Indiana ordinances forbidding dog tethering needed.)