Is it really necessary to learn how to stop your puppy from jumping up? Definitely! Right now your puppy is not that big but if he is a large breed dog and you do not correct this behaviour now when he is full grown he could actually hurt you or someone else.
Puppies jump up on us for a variety of reasons. The main reason is for attention. They are curious by nature and they do explore by scent. Since they are so small for now they need to jump up to investigate you better.
Some people believe that the puppy is just happy to see them when they display this behaviour. They may be happy to see you but that is not why they are jumping all over you.
If this behaviour is not corrected at an early age the jumping up could take on a more dominant overtone and you definitely do not want that.
So if your puppy is looking for attention then it seems logical that when they jump up on you and you give them attention you are just reinforcing the bad behaviour. Therefore you need to ignore your dog when they display this bad behaviour. When they jump on you, you need to turn your back on your puppy and walk away and totally ignore them. Cesar says it best, “No Touch, No Talk, No Eye Contact”.
After your puppy settles down, then you can try it again. Call your puppy and if the same behaviour is again displayed some trainers recommend that you totally isolate your puppy. You can do this by leaving the room or putting your puppy in another room, hopefully one that is puppy proof.