Sometimes in the course of delivering a presentation, you might want to “draw” on a slide: Like a commentator on a TV football broadcast, you can use circles and arrows to drive home a point. In PowerPoint 2003, you also get some new choices for your on-screen “pen”—you can use a fine-line ballpoint option, a thicker felt tip instrument, or a broad highlighter. As in earlier versions, you get to choose the color.
To begin marking up a slide while your slide show is running, right-click the screen and choose Pointer Options, Pen. Choose one of the three pen types and then click the pen-shaped pointer to draw on the slide.