If your dog is known for jumping, you can prevent the behavior by keeping him on a leash while he is out and about. As the owner, you can get down to his level and quickly redirect the situation. If you are not quick enough, he may be tempted to jump. To keep your dog from doing this, you can reward him for sitting calmly, while remaining on a leash.
Putting a leash around your dog will also prevent him from jumping on people. This way, you can make sure that everyone in the household is aware of the behavior and that the dog does not jump on strangers. You should also use a longline (10ft) to quickly and calmly bring your dog
back to you. You can then reward the dog for not jumping up, such as giving him a treat after every non-jumping behavior.