Institutio Oratoria

The following short gestures are also employed: the hand may be slightly hollowed as it is when persons are making a vow, and then moved slightly to and fro, the shoulders swaying gently in unison: this is adapted to passages where we speak with restraint and almost with timidity. Wonder is best expressed as follows: the hand turns slightly upwards and the fingers are brought in to the palm, one after the other, beginning with the little finger; the hand is then opened and turned round by a reversal of this motion.

There are various methods of expressing interrogation; but, as a rule, we do so by a turn of the hand, the arrangement of the fingers being indifferent. If the first finger touch the middle of the right-hand edge of the thumb-nail with its extremity, the other fingers being relaxed, we shall have a graceful gesture well suited to express approval or to accompany statements of facts, and to mark the distinction between our different points.