One's physical carriage and attitude tends to react upon his own mental attitude as well as also impressing those in whose presence he is. There is always an action and reaction between mind and body. Just as mental states take form in physical actions, so do physical actions react upon the mind and influence mental states. Frown continually and you will feel cross; smile and you will feel cheerful. Carry yourself like a man, and you will feel like a man. Carl H. Pierce says regarding the proper carriage of a salesman: "Remember that you are asking no favors; that you have nothing to apologize for, and that you have every reason in the world to hold your head up high. And it is wonderful what this holding of the head will do in the way of increasing sales. We have seen salesmen get entrance to the offices of Broadway buyers simply through the holding of the head straight up from the shoulders. The rule to follow is: Have your ear lobes directly over your shoulders, so that a plumb line hung from the ears describes the line of your body. Be sure not to carry the head either to the right or left but vertical. Many men make the mistake, especially when waiting for a prospect to finish some important piece of business, of leaning the head either to the right or left. This indicates weakness. A study of men discloses the fact that the strong men never tilt the head. Their heads sit perfectly straight on strong necks. Their shoulders, held easily yet firmly in correct position, are inspiring in their strength indicating poise. Every line of the body, in other words, denotes the thought of the bearer." So cultivate not only the inner sense of Self Respect, but also the outward indications of that mental state. Thus do you secure the benefit of the action and reaction between body and mind.