When you're giving instructions, it is best to wait until the concluding segment of your presentation to describe the desired outcome

One effective way to begin a speech is to ask the audience a question

Indicate whether the statement is true or false.

If James works for a tennis racket maker and needed to explain how a manufacturing problem created blemishes on the surface of many rackets, James should use:

a) handouts. b) models. c) whiteboards. d) objects.