Adding audio narration and slide timings is an excellent way of presenting a self-running power point slide show.

Read all the text on a slide out loud as a timing guide when you record the timings. This step helps ensure there's enough time for everyone to comprehend the slides in your PowerPoint.

How to Add a New Slide to PowerPoint. Microsoft's PowerPoint application can be an invaluable tool for creating business presentations to pitch new clients or to use as a visual aid in meetings ...

One way to do this is by adding snow to a PowerPoint slide. The article How to make it snow in PowerPoint offers a basic snow plan that uses the same shape and random timing effects.