Keep the pup focussed on you as long as you can, it will pay dividends in the long run as in having more controlWhen a pup is overtly reacting to movement he is then acting on instincts a state which is uncontrollable for owners ,
The longer you can be a focus for his attention the better, don't be in rush to throw away his interest in you, it makes training much easier,
Best of luck with pup
I have to totally disagree ... A dog working on instinct is the foundations and building blocks of training a dog to do what you want it to do ... A collie herds sheep through instinct ... The guard