Callouts are shapes that allow you to do numerous tasks: you can add text indications, create pointers, and also create comic-book style speech and thought balloons. You can create something that will attract the attention of your audience by combining the callouts with illustrations or photos of characters (both human and animal). All of the 16 Callout shapes available in PowerPoint cannot be used for text and thought balloons — mostly you can use 4 of these shapes. While Rectangular Callout, Rounded Rectangular Callout, and Oval Callout shapes are speech balloons, the Cloud Callout is essentially a thought balloon.
Microsoft and the Office logo are trademarks or registered trademarks of Microsoft Corporation in the United States and/or other countries.