Content

• Steps
• Tips
• Warnings

Have you ever had the feeling that someone is watching you in the workplace, or in the dressing room, hotel or other place where you think you have should be personal space? If there is a mirror in this room, then it can be two-sided - a mirror that reflects from one side (into which you are looking), and transparent - from the other side (from the side of the observer). It gives off a disgusting feeling when you realize that someone may be peeping at you, but it's easy enough to talk about if your reflection is the appearance of someone else. Checking a mirror is simple and involves touching it and observing the point of contact.

Steps

1. 1 Try a fingernail test. When you touch the mirror with your fingernail, you usually see a gap between the outer clear glass and the mirrored inner glass. First surface mirrors (on which you won't see a gap) are very expensive to manufacture, so most mirrors have a reflective surface under a layer of glass (second surface mirrors).
   • If you see a gap, you can be sure your privacy is not compromised.
   • If you haven't seen a gap, don't worry - yet. The fingernail test may vary depending on lighting, mirror size, and your own perception. However, if there is no gap, then an additional test can be performed to be sure.
2. 2 Consider how the mirror is installed. A normal mirror hangs on the wall, and a transparent one is inserted in wall. If there is a wall behind the mirror, you can be sure that it is nothing more than an ordinary mirror.
3. 3 Shine a light on him. If you are still in doubt, turn off the light, then put the flashlight to the mirror (it could even be the "flashlight" on your smartphone). If it is a two-way mirror, then the room on the other side will be illuminated.
4. 4 See for yourself. Press your face against the mirror and cover it with your hands, forming a dark tunnel to block out as much light as possible. That being said, if the light in the observation room on the other side is generally brighter than the light on your side of the mirror, you should see more than glass.
5. 5 Check for sound. Tap the surface of the mirror with your fist; a normal mirror will make a dull, flat sound. it is placed directly on the wall. The observation mirror, meanwhile, will emit an open, empty and echoing sound as there is an open space behind it.

Tips

• In many places, such as gas stations, one-way metal mirrors are installed. glass mirrors can break visitors. If a metal mirror is in question, then this is not a two-way mirror.

Warnings

• None of the two-way mirror tests are protection or warranty. All you need is a small hole in the wall for a hidden camera with a fisheye lens, and there will be no clues like lighting from the other side, or any empty sound, and nothing will be visible if you lean against the mirror with your palms. Even if the mirror is the most commonplace, there are many other places to hide surveillance devices. Also keep in mind that most people have no desire to go through risk, trouble, and hardship in order to spy on. The exceptions are retail store owners - who often use surveillance technology to discourage staff theft and shoplifting - and various government agencies.