How to know if it is a 2 Way Mirror

Another e-mail from a friend. Thanks guys! This is helpful to all girls out there.
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Can you tell when you are in a hotel room, restroom, motel etc. with a
 mirror whether it is in fact a mirror or 2-way glass?

                                      Here's how:

 I thought it was quite interesting! And I know in about 30 seconds you're
 going to do what I did and find the nearest mirror.... Do you know how to
                  determine if a mirror is 2-way or not?


    This is not to scare you, but to make you aware. A policewoman who
     travels all over the U.S. and gives seminars and techniques for
  businesswomen passed this on. When we visit toilets, bathrooms, hotel
   rooms, changing rooms, etc.., how many of you know for sure that the
    seemingly ordinary mirror hanging on the wall is a real mirror, or
 actually a 2-way mirror (i.e., they can see you, but you can't see them)?
 There have been many cases of people installing 2-way mirrors in female
 changing rooms. It is very difficult to positively identify the surface by
                           just looking at it.

 So, how do we determine with any amount of certainty what type of mirror
            we are looking at? Just conduct this simple test:


  Place the tip of your fingernail against the reflective surface and if
 there is a GAP between your fingernail and the image of the nail, then it
  is a GENUINE mirror.  However, if your fingernail DIRECTLY TOUCHES the
        image of your nail, then BEWARE, FOR IT IS A 2-WAY MIRROR!

                       "No Space, Leave the Place"


  So remember, every time you see a Mirror, do the "fingernail test." It
                        doesn't cost you anything.

                  Remember:  "No Space, Leave the Place"