Yes. The gentleman watching videos on YouTube had the volume off. Nobody even knew he was watching a video.

The FAA rep, however, was always loud and making comments and giving his opinion as well as making loud jokes with a class member sitting next to him.

Edit: spelling.
You shouldn't be on YouTube during indoc. But is it necessary to flex your FAA muscles and make a permanent mark on someone's career on their first week of their 121 career?