Enlarge the presentation to full screen by clicking on the arrows located at the bottom right side.
To advance the slide, click on the arrows located at the bottom center.
To return to a slide or navigate to a specific slide, click on the blue/gray bar below the presentation.
If viewing on the mobile app, enlarge the screen by rotating your phone to a horizontal position and advance to the next slide by swiping the current slide to the left.
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