When you get to level 5 and get a mate, hunt a lot until 15, then level your puppy up to be able to also help hunting. Then continue leveling up until level 20. Then go into your howls and click mark of the owl. If activated when you interact with packmates, finish a well earned hunt or fight, or even eating/ placing food in the den will give a exp bonus. The activation is indicated by a purple ring around your wolf. The more packmates you have, the better the skills ability and the skills duration, the faster you level up. Fighting bosses comes in handy also, because you get a lot of exp. And if your in a fight with a wolf pack and your with your pack, you'll get a lot of experience. You can equip this to all your packmates, and this mark makes it easier to get pups outside the den. It also helps level pups up easier.