One tap to take a photo. Two taps to pull up maps. Three taps to check notifications. Hold to dictate a message. Tap once and hold to take a video. Tap twice and hold to augment directions on the street. Tap / hold "S.O.S." in Morse code to set off a small-range EMP. Tap three times and hold to pull up most recent apps.

Please use caution when operating your glasses. Thank you.

Stories of the day:

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Today's 90 Seconds on The Verge was written by Ross Miller. All production magic is credited to John Lagomarsino.