Instructions: 1. Stare at the red dot on the girl’s nose for 30 seconds. 2. Turn your eyes to a plain surface (your ceiling or blank wall). 3. Blink repeatedly and quickly.
Try sticking a bit of blu-tak over the green and blue dots and try again.
It still works - even if you cover over all the dots and stare at the blu-tak.
I need to get back to work now.