If you wish to include useful information that should only be visible to you (the speaker) during your next PowerPoint presentation, here's how to do that.

Notes Pages prints one slide per page, with Speaker Notes below it. So, to print your slides with Speaker Notes, click Print. Other options under Print Layout include Handouts, print-only slides ...

Note that typing in the note section won't be reflected at all on the slide. Add any other additional speaker notes as desired.