I always feel a bit defensive when a cashier holds my money up to a light to see if it’s counterfeit. I understand the skepticism, though no one wants to get scammed.
If you’re in England, you can feel a bill for raised printed words. A hologram will show a changing number when you tilt the note, and the Queen of England appears when you hold it up to the light! On the back of the bill, you’ll see a line of silver dashes that will show a dark line when held to a light.
