The Spinning Silhouette Illusion

First check out the picture below. Its spinning clockwise right?

Apparently when you look at her shadow and slowly move your eyes up she starts spinning counter clockwise. But that didn't work for me. I sat there staring at her for like 10 minutes and didn't get it. I only got it when reading some text above the image, from my peripheral vision I could then see her spinning counter clockwise and now she won't stop spinning in that direction. Its all a matter of which leg you think is on the ground. Its just all fucked up!