after thirty times, test whether or not he has learned the behavior by calling him over to you and telling him the german command for that behavior. after you tell him the command then wait ten seconds to see if he will do the behavior and if he does, give him a treat. repeat this up to seven times, until he does the behavior.
if your pup does not do the behavior when you tell him the german command any of the seven times, then practice capturing him doing it on his own for longer. after you have caught and rewarded him for doing the behavior on his own at least 