Just keep doing what you' re doing, I usually try to do the same thing at least twice a week with young puppies. Make sure you stop & give them a chance to smell the fresh poop & any fresh tracks that you come across. Eventually they' ll start to wander off on their own a little, at which point it is a good idea to get an older, slower dog that you know will trail & run a deer to put with them & teach them a little more.