Try to maintain a subtle, composed smile at all times. “Practice in the mirror. You don’t want to look like a crazy person. But you might discover that a subtle, practiced smile looks friendlier and exudes more confidence than your natural expression does at rest. There’s truth to that 1980s deodorant slogan, ‘Never let them see you sweat.’ Your star witness buckles under cross-examination? Smile your subtle, practiced smile. Unexpected testimony shocks you? Subtle smile. If you frown or rock backward in surprise, a juror might conclude that you think your case has been undermined. If you keep your neutral, subtle smile, it instead says: ‘Everything’s going my way, just as I expected, all part of my master plan.’”