Speaker notes help you remember what to say when you present. Print them, or use Presenter view to see your notes, while the audience sees only your slides.
Add speaker notes
Slides work best when you don’t cram too much information (especially too much text) onto them.
Keep the text to a minimum and put the extra stuff in the speaker notes section, out of your audience’s sight. Then, refer to your notes while you give the presentation.
Open the notes pane by clicking NOTES at the bottom of the window.
Click in the notes pane below the slide, and enter your notes.