Sometimes during a live presentation there may be a delay. Whether it is a chatty audience member with a complicated question, a fire drill, or just an intermission, you will want to pause the show.

If you have the slides set for manual transition, then whichever slide you stopped on remains on the screen until you resume. However, you may not want this. For example, it may be distracting to the audience, especially if the pause is to allow someone to get up and speak in front of the screen. A solution is to turn the screen into a blank expanse of black or white. To do so, type W or a comma (for white), or B or a period (for black). To return to the presentation, you can press the same key, or press any key on the keyboard.

While the screen is completely black or white, you can draw on it with the Pen tool so that it becomes a convenient “scratch pad.” Any annotations that you make with the pen on the blank screen are not saved; when you resume the presentation, they are gone forever.

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