Thnaks for the fantastic answers.
My puppy is being hand fed all meal, expet 5 kongs a day for when we are away at work (we have a kong distrobutor, pretty neat).
He dosent guard his food at all. He gets actually pretty exited when I remove his kong, because it usually means that I will help him get that litle last kibble out of it (wich I do).
When hand fed, he will sit and stay on command, and give back his half eaten kibble when prompted to back off (you have to understand that I was originally holding the kibble).
I will start introducing food reward and clicker, and slowly remove the food to use the clicker as a positive reward. Will see how it goes
Thanks alot!