The best way to learn how to use HoloLens is by running through the “Learn Gestures” app on the device. To launch the app, first put the HoloLens on: (link to “How do I put on HoloLens?”). The app menu will follow your gaze as you move your head around. If there is no such menu when you put the HoloLens on, you’ll need to perform a “Bloom” gesture. To do this, hold out your hand, palm up, and put your fingertips together. Then open your hand. Now the menu should be open. Find the “Learn Gestures” app.