Interesting! Do play even if you cannot read traditional mandarin.
Click on link to see.
Is the girl twirling clockwise or anti clockwise?
http://blog.sina.com.cn/s/blog_4759de440100abfn.html
People who see it turning clockwise are mainly controlled by right brain, whereas anti-clockwise means controlled by the left. Women usually see clockwise, men anti-clockwise.
And yes I am a woman, so I see clockwise. At first.
Now stare at the shadow on the floor and see if you can make the girl turn the opposite direction.
I can make her turn both directions.
If you can do the same, apparently based on this you have an IQ of at least 160.
WOOOOOOOOOOOOOOOOOOOH!