HOW TO DETECT A TWO WAY MIRROR
This came across my facebook feed the other day:
When you place the tip of your fingernail against the reflective surface of a mirror, 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 it is a two way mirror.
Somebody may be on the other side,
watching recording you.
Play it safe - “No space, leave the place.”