We can add notes to a particular slide in Notes View. These notes are not visible when the presentation is shown.
The steps to enter notes in a slide are described below:
1. Click on View> Notes or ‘Notes tab above the workspace to open the Notes view.
2. Select a slide from the Slides pane.
3. You will find a text panel below the slide with a prompt box ‘Click to add notes’. Click here to enter notes for the slide.