When your puppy reaches adolescence, he may be unable to control his impulses and start to test limits (just like a human child). Adolescent jumping up can turn into “nose boinking” which can lead to broken glasses or even a bloody nose. Jumping up often combines with mouthing behavior where the pup bites and grabs your hands, clothing or even your derriere in a grabbing game of tag.
Also, it's your job to never let anyone else allow your puppy to jump up on them! They will say, "It's OK, she's just a puppy, I don't mind if she jumps on me". You must rush in and pull the puppy down immediately, put your pup in a sit, praise the puppy then scold the person ! Continue to hold the puppy in a sit and let the person greet the pup. Explain to them they can never allow the puppy to jump on them - the puppy must sit to be greeted. To stop the jumping up behavior in pups, I do as much people training as puppy training!
Español: evitar que tu perro salte, Deutsch: Einem Hund das Hochspringen abgewöhnen, Português: Fazer um Cão Parar de Pular em Você, Italiano: Far Smettere il Cane di Saltarti Addosso, Русский: отучить собаку напрыгивать на вас, Français: empêcher un chien de sauter, Tiếng Việt: Dạy Chó Ngưng Nhảy lên Người, Bahasa Indonesia: Membuat Anjing Berhenti Melompat, Nederlands: Een hond afleren om tegen mensen op te springen
Unless given a command to jump, a dog should never be allowed to jump on humans. A dog that jumps on humans of its own free will is a dog that does not respect the person it is jumping on. Even those cute little toy dogs should not be allowed to jump on people. While you may think it is cute, it is not cute to everyone else. Not only is it annoying to most people to have someone else's dog jump on them, it can also be dangerous. A jumping dog can knock people over, muddy their clothes, put runners in nylons and scratch the skin.