I originally saw the dancer going counter-clockwise, making me a left-brainer. However, after a minute or so I could make her go either direction, which was pretty cool. 
Periodically she would just change directions, but whenever I first look at it, by default it appears to be going counter-clockwise. Fun fun!
Thanks to +Sheighla Friel and +Susan Vollenweider for introducing me to this. Kudos!
Reshared post from +Sheighla Friel
Which one are you?
Warning: don't watch the dancer for too long or you may get a headache.
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Right Brain v Left Brain
THE Right Brain vs Left Brain test … do you see the dancer turning clockwise or anti-clockwise?
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+Scott Cramer I got clock-wise myself, with it also reversing.
+G+ LeapYear 2012 – Day in the life of G+ If we shake hands, will the universe explode?
+Scott Cramer LOL maybe that's how the Big Bang started!
+G+ LeapYear 2012 – Day in the life of G+ Perhaps we should just wave, then.
I,ve seen this before and was able to make her turn any way I wanted but for some reason, today, she is standing still.
I must be dain bramaged
+Kari Tedrick After effects of the Kung Fu and Dr. Seuss, I'm sure.
Yeah that Dr Seuss is the new crack. Dubious? Just walk into any preschool.
I can make her spin either way if I work at it.