Institutio Oratoria

it is only on rare occasions, too, that it is becoming to touch the breast with the finger-tips of the hollowed hand, when, for example, we address ourselves or speak words of exhortation, reproach or commiseration. But if ever we do employ this gesture, it will not be unbecoming to pull back the toga at the same time. As regards the feet, we need to be careful about our gait and the attitudes

At times we may rest our weight on the right foot, but without any corresponding inclination of the chest, while, in any case, the gesture is better suited to the comic actor than to the orator. It is also a mistake, when resting on the left foot, to lift the right or poise it on tiptoe. To straddle the feet is ugly if we are standing still, and almost indecent if we are actually moving. To start forward may be effective, provided that we move but a short distance and do so but rarely and without violence.