Congratulations on the new puppy. One question is how old is the pup..that matters. If left with the mom and litter longer they learn a lot but if he is very young you are his litter and parents. A sharp no and redirection is good . If he keeps it up quit playing, puppy time out. If he chews on stuff tell him no and give him something appropriate. I was lucky, we got most of our cockers when they were adults, except our current boy Chase. I was also blessed because our breeder had young children and he was already trained, he loves kids. He has never been a chewer.