Gestures
Should a speaker make gestures? Certainly never if the gesture detracts from the force of an expression, as when a preacher pounds the book so hard that the congregation cannot hear his words.
Certainly yes, when the feeling of the speaker behind the phrase makes him enforce his meaning by a suitable movement. In speaking today fewer gestures are indulged in than years ago. There should never be many. Senseless, jerky, agitated pokings and twitchings should be eradicated completely. Insincere flourishes should be inhibited. Beginners should beware of gestures until they become such practised masters of their minds and bodies that physical emphasis may be added to spoken force.
A speaker should feel perfectly free to change his position or move his feet during his remarks. Usually such a change should be made to correspond with a pause in delivery. In this way it reinforces the indication of progress or change of topic, already cited in discussing pauses.