Your puppy’s appetite for exploring his environment and learning new things will benefit tremendously if he is given a variety of simple toys to investigate at this stage. He will also play rough and tumble with his littermates, stealing and sharing toys. By this point, he should be spending a short time each day alone with a human, playing gently and learning to relate one-on-one in a safe, trusting situation.
By this age, your puppy can remember which behaviors he is allowed and where and when he is fed. He can even begin house-training and start becoming used to being groomed. He is ready to leave his mother and littermates to go home with you, fully capable of taking his place in the family.