// when we look away form the game object. when not guessing
 private void clearCurrentObject()
 {
     if (currentGazeObject != null)
     {
         currentGazeObject.OnGazeExit();
         SetReticleColor(inactiveReticleColor);
         // tell the system we are no longer looking at the game object
         currentGazeObject = null;
     }
 }