If you’ve ever been uncomfortable while giving presentations, you’re going to love a hidden feature in PowerPoint: Rehearse with Coach.

Go to the Slide Show menu in an updated version of PowerPoint, and you’ll find a button called Rehearse with Coach. When you click it, an extra box appears over your PowerPoint slides. As you present, it listens to your tone, filler words, inclusive language and overall style. Then you’ll get a report card and suggestions for improvement.

But don’t take my word for it… see it below in action as I perform my first TV Tech Makeover to help Sheldon Cooper overcome his robotic presentation skills.