But others are automatic â though not guaranteed â such as the jump from private first class to specialist. Once a private becomes a specialist, he begins prepping for leadership. This is a crucial time in his molding process because he will soon enter the ranks of the non-commissioned officer corp.
1 Puppies will stand up and start walking. 2  At the age of 3 weeks a puppy will develop its sense of smell. 3  At 3 weeks the puppy will begin to bark and show social development such as wagging its tail, growling and baring its teeth.  Up to the age of 4 weeks the mother will be with the puppy almost constantly.
Tips. 1  If you want to confine your puppy to a crate, keep in mind that puppies under 6 months of age might not be able to control their bowels and bladders for four hours. 2  If you can't do it yourself, have a trustworthy friend or neighbor stop by to walk your puppy so he can do his business.tep 1. Walk your puppy about one hour before leaving him alone. Take him outside so he can go potty and play a game of fetch so he can run and have fun. A good exercise session can help keep him calm while you're away.