The article presents some tips that could help anyone concentrating at work. Cupping one's hands around one's eyes to create tunnel vision, like a telephoto lens. That action symbolizes that one is looking at and thinking about just one thing. And actually placing one's hands like that each time one need to concentrate can create a Pavlovian response and train one's brain. Working past the point of frustration helps build mental stamina, just as not giving up when your body gets tired helps build physical stamina.