Doctor

[[FF]TeddyBear]

Friend showed me this, and used to do this heaps xD

 

[Panki]

LMAO Same here xD

 

[MiRc34]

Oh lol, I used to show this trick to all my friends XD

 

[Mave]

I do remember this from primary school.

 

[Aman1238]

LMAO. I used to do this so much when I was little xD