Google Inc. (NASDAQ:GOOG) has patented the gesture that you make with your hands to form a heart. Google patented this so that you can “heart” things in real life while using Google Glass. The patent would allow a head mounted display (HMD) to recognize hand gestures made by the user and conduct actions in response.
This is what the heart hand gesture looks like:
When framing a view with two Ls, it would trigger a camera action.
It is unknown whether the functionality in this patent will be actually implemented in Google Glass or not though.