Playtime should never be confused with potty time. You must take your puppy out to play after it has been out to potty. If you let the puppy just play outside all of the time it is only learning it can just freely potty when it feels the need too. It does not understand the difference between outside and inside. So playtime is a scheduled event when it is going outside to play. Do not overly exhaust your puppy during play. Make sure it has fresh water to drink. Do not play tug of war with your puppy. This game teaches it to become aggressive and pull at your clothes. Remember pups are learning through play. Buy appropriate size toys made specifically for dogs.