Sometimes you want to show your presentation on different computer, and that computer does not have same fonts as your PC.
To display properly that presentation, you should embed the fonts in your presentation so that the desired fonts will be available on the other PC.

By default, PowerPoint shows document tooltips (or screentips) when you hover on a button, but this option can be turned off.

If you don't want to see the red, wavy underlines on-screen, you can turn this feature off by three simple clicks:

This tip contains Shortcut Keys or Hotkeys for changing font size.