IT IS EASY ! All you need is just 30 seconds. Believe me.What you need to do is first stare at the four small black dots at the centre of the picture shown below. Stare at the four small dots for 30 seconds. After that, turn your eye to any white color wall ( or other wall with light color, do not look at wall at dark color as it won't work!). Twinkle your eye very fast and …