Focused
If you’ve been to a military parade, then you know they usually go something like this. At first, they’re exciting! Soldiers, uniforms, tanks, trucks!
But as the endless procession continues, things can get a little dull. And if you think that’s true for spectators, it’s doubly true for the soldiers taking part. Imagine marching in close formation all day long, not being able to look left or right, talk to your friends or zone out, even once. It’s a good thing they didn’t say anything about moving your mouth. Yawn!