How to teach your puppy not to bite?

Before anybody suggests this is because he's teething - it's not. First of all puppies nip when with their siblings so basically this is just another correction you'll need to make so he knows doing this to humans isn't behaviour that's wanted. Try not to let him get this 'manic' if you can - and puppies often get to this level when they are getting tired - just as with kids! If he starts this, stand up, say No Biting!, take him outside to empty and bring him back to where he sleeps (recommend a crate) with a few puppy bicuits (so he doesn't look on this as punishment). he may complain but should settle down for a nap. He needs to learn there will be consequences for unwanted actions. No yelling, hitting etc. Just confident firm correction. And you could try diverting his attention onto his toys, but nothing is better than you to nip!!!

Dogs hate being ignored and so you need to capitalise on this by correcting this with 'ignoring'. It's just a phase but it does need sorting out so he understands nipping humans isn't allowed.