When my border collie was a puppy who was a very busy boy, I focused on watching for and rewarding, said 'Thank you' (gentle praise, a tiny treat or a few) him for any behaviors he offered me that I wanted him to repeat (I still do, and he is almost 3 yrs. old, to maintain those 'good' behaviors he learned as a pup). Those behaviors included behaviors such as approaching me, chewing appropriate toys, a sit, a down, laying on his bed, not jumping up - keeping four on the floor, not biting/nipping me, settling in his crate. It wasn't long before he was offering plenty of 'good' stuff!
I also worked on giving him things to do that would help to focus, relax and 'slow' him down, for example- his meals were fed from stuffed Kongs, snuffle mats, 'find it' - tossing a short distance away, to 'settle' - or go to a mat and settle there, helping him learn to engage his 'off' switch, when I asked him to, teaching new skills or tricks, short walks on a long leash, allowing him the freedom to use his nose and his brain - sniff and explore the world - all help to create a calmer pup.
Keep in mind that 'ignoring' misbehavior is only a small part of the learning equation for our dogs, and doing so will often result in a 'pause' in that behavior, we need to 'capture' the moment, and reward them for not doing it. For example: if the puppy is jumping up, ignoring it will often result in a pause, and the pup will offer a sit, or stand (four on the floor) and we need to be prepared to say 'Thank you' and reward them for the sit or stand- getting it right (not jumping up). Ideally we want to work with our pup, learn to anticipate when a 'misbehavior' (jumping up) might occur, try to 'stay ahead' of them and reward appropriate behavior (four on the floor) before they have a chance to practice the 'misbehavior'.