The Art of Public Speaking a speaker does not say and do that reveals the dynamo within. Anything may come from such stored−up force once it is let loose; and that keeps an audience alert, hanging on the lips of a speaker for his next word. After all, it is all a question of manhood, for a stuffed doll has neither convictions nor emotional tension. If you are upholstered with sawdust, keep off the platform, for your own speech will puncture you. Growing out of this conviction−tension comes resolve to make the audience share that conviction−tension. Purpose is the backbone.