Google has filed a patent suggesting users stick out their tongue or wrinkle their nose in place of a password. It says requiring specific gestures could prevent the existing Face Unlock facility being fooled by photos. The Jelly Bean version of Android introduced the need for users to blink their eyes as a check, but users soon demonstrated it could be fooled. A spokesman for Google was unable to comment on when the suggested technology might be implemented. Fooled by Facebook: The document – which was filed in June 2012 but has only just been published – suggests the software could track a “facial landmark” to confirm a user not only looks like the device’s owner but also carries out the right action. It says examples of the requests that might be made include: a frown, a tongue protrusion, an open-mouth smile, a forehead wrinkle, an eyebrow movement.