Yapper is very much an extrovert. Whenever the pups crawl into his den, he is the first to welcome them in and tell them outrageous stories. However, you must be careful in his presence, for Yapper will talk your ear off if you decide to stay for a nice chat.
Everyone knows it when Yapper is prowling around the mountain territory. Signified by his dog-like, high-pitched yap, it's no wonder how Yapper got his name.