Do you appear confident? You may think so but take a look at your posture. Are your shoulders rolled forward and is your back hunched? If so, then both proper posture and the appearance of confidence are surely lacking. Posture speaks volumes in either helping to exude confidence, if correct, or detracting from it, when poor. Today, most people have poor posture as a result of sitting for extended periods of time. Working on the computer pulls the body forward as the natural tendency is to roll the shoulders forward and hunch the back.
The only way to counteract the effects of improper posture is to train with proper posture. Posture must be maintained when raising and lowering a weight. Renegade training constantly reinforces proper posture. Each exercise is performed with shoulders squeezed back and butt pushed back to a neutral position. Over time weak muscles will begin to be strengthened and correct posture will ensue.