You couldn't walk a mile in that way without becoming very tired.
There, that is much better.

Notice my position." The boys, after adjusting their positions, looked at the rest to see how they had succeeded.
"Don't look at each other," said Mr.Morton.

"If you do you will be certain to make blunders.

I notice that some of you are standing with one shoulder higher than the other.

The shoulders should be square, and the body should be erect upon the hips.