It's amazing how tiring just standing there can be! He nods to acknowledge Minato's promise, then sets down his spear again.

"Good. Besides the stance, also practice this movement." He sets himself into the stance, then steps forward with his right foot while arcing his pretend sword back behind his head. Slowly he swings down, bringing his left foot forward. And then he does the same in reverse, stepping back*. The fact that he does it slowly is not only for Minato's benefit, so that he can study the movement, but for himself. Although he's seen the movement many times, he's not done it with a sword. Yet he is reasonably sure he has it correct. It feels unusual, but not wrong.

Repeating the movement over as he speaks he explains, "This is a fundamental movement. From here you will learn how to defend or attack. But if the root of the motion isn't good, then the rest won't be either." Pausing, he arches an eyebrow knowingly at the boy. "I know you will practice hard, but do not overdo it either. Patience is also necessary for proper growth."

Stopping his demonstration he encourages, "Give it a try. I will correct your form." Because that will be far more accurate than him demonstrating it!