Add presenter notes in Keynote for iCloud
As you create your presentation, you can capture what you want to say for each slide in your presenter notes at the bottom of each slide. Presenter notes can also help you refine what information to include on a slide.
Add presenter notes to a slide
Click the View button in the toolbar, then choose Show Presenter Notes.
Type your notes in the white area below the slide.
In the slide navigator, the thumbnails for slides with presenter notes have a small square in the top-right corner.
To format your notes, select the text, then use the controls in the Format sidebar on the right.
Hide presenter notes
If you want a little more room to work on the slide canvas, you can hide presenter notes while working on your presentation.
Click the View button in the toolbar, then choose Hide Presenter Notes.
You can also add or edit notes in the presenter display while playing your presentation.