It is not a pleasant behavior to randomly jump in strangers. However, some dogs don't think this way. If your dog is one of them, these tips will help you stop him from doing it again:
If he engages in this behavior to greet others, teach him other actions that will replace jumping as a greeting gesture. When he follows your instruction, don't forget to reward him.
Teach your dog to be calm in front of strangers. Before greeting them, he must be in a stagnant position first.
Ignore his jumping behavior. If you continue doing this, it will give home the idea that you dislike this behavior. Eventually, he will stop since he does not benefit from it. Moreover, you don't give him attention when he performs this stunt.
Leash him. A leash will give you complete control over your dog's actions. Thus, he can't jump on people if you don't allow him to while on a leash.
Ask for help. When you can no longer manage your dog's jumping habits, seek backup. A professional behaviorist or trainer will be of great help in this situation.
If you have any concerns about your pet's health and/or behavior, make an appointment with an animal hospital Marietta, GA. Set an appointment here: smyrnaveterinary.com.