How do you feel if you see a button and it says: "don't push it"?
Doesn't a "DON'T!" make you feel more like a "DO"?
When I walked by I and saw that sign I felt a strong urge to take a photo!
Without the sign I would not have bothered.
I did nothing wrong. The law says, that you can take pictures in public.
While taking that picture I was on the street, so totally legal.
After I took the picture I thought:
"Maybe they shop who sells the dresses does it on purpose!"
On purpose? Yes! Maybe they know about "Reverse Psychology".
Or maybe not. However, it could be used as a strategy to get people to take photos of the store and to share it with others.
I am sure this technique is used in marketing!