When I first brought my pups home, I started from day one putting my hand in their mouth, taking food away when they were eating, and giving it back to them. I did this because I have a 5 year old grandson, and 4 four year old nieces and nephews, as well as a 10 month old nephew. I wanted to make sure they would be gentle with the kids and not bite them. When we give them treats, we just keep our hand flat open , because they can't bite an open hand, and they do get excited for their treats. I make them sit first, and then tell them to stay , then I put the treat flat on my open hand and give them the treat. I've taught my grandson to do this as well.