Google has released a new video about how to use Google Glass. The touchpad runs from your temple to your ear. Touching the touchpad on the glasses shows the display above your line of sight. The display shows the Home screen, which highlights a row of cards.
The cards on the left is what is happening now like the weather and your calendar. Tapping on any card lets you see more details about that card. Swiping down anywhere on the touchpad lets you go back to the timeline. Cards to the right of the home screen are things that happened in the past like messages, videos, and photos. Tapping on a photo lets you share them with your friends. Swiping down again lets you go back to stand-by.
Check out the video below: