Once you have completed all the steps in the Getting Started just open you presentation on the computer and start controlling it from the phone.

  1. Open your presentation on Google Slides
  2. Search for the 'Present' button and click on it
  3. Open Watch Presenter on your phone
  4. That's it! Control your presentation by using the volume buttons on the phone

You can turn the phone's screen off while you're presenting. This way, you'll save battery