2.      “Peek-A-Boo” – This method involves having one’s hand under a jacket, hoodie, or sweater.  (Editor’s Note:  It is safe to assume that if you cannot see a student’s hand, it is attached to an electronic device.)  The jacket can either be sitting on a desk, or on the student’s lap.  When the student sees that your attention is focused on another area of the room, they simply lift their hand to reveal the device.  When you look back in their general direction, the hand lies flat under the jacket again.  Advanced students of this method will periodically pull their empty hand out from under the jacket to show you that they aren’t engaged in any illegal activity.  Of course, their electronic device is under the jacket, waiting to be used later in the class.