One important aspect of keeping puppy safe is making the connection with their name and learning that when you call them and they come to you wonderful things happen. For those pups that have their real names now we have started imprinting that. At this age puppies are underfoot and want to follow and be with you. We take them individually for walks in the yard and let them get a bit ahead or behind us and call their name and the instant they turn and look at us and start to come toward us we reward them with excited praise and when they get to us they get a tasty treat. It doesn't take long for puppy to learn that his new name is associated with wonderful things (you and a treat). That is why we NEVER call a puppy to us and punish or scold them. We only use positive reinforcement in training puppies. It is so easy to train a solid recall at this age and can save the life of your puppy in the future.
These pups are very comfortable napping in a crate.