1 - Look at the red dot for 30-40 seconds.
2 - Then look at the ceiling or wall and start blinking rapidly.

What is the trick !
hulkman Reviewed by hulkman on . Wow, What is the trick behind this! 1 - Look at the red dot for 30-40 seconds. 2 - Then look at the ceiling or wall and start blinking rapidly. What is the trick ! http://i.imgur.com/nqZ0z.jpg Rating: 5