id be carful with that one as if you upset the dog or it gets scared it may bite you.
teach the leave command, get a tug toy, and encorege the pup to play, then tell the pup to leave and show a treat, the pup should see the treat and let go. then give the pup the treat, repeat this severly times. then work on getting to pup to fetch and bring a toy or ball back to you, and leave it on command. as the pup gets better you wont need to show the treat.