I can't completely control it, but for awhile, by blinking at the right time and convincing myself of which way she was going, I started switching every half turn. I think there are two places where it can be done. At the point where her legs cross and when her leg is pointing straight out. Because it is really 2D even though it seems 3D to me, I can't see something switching directions (left vs. right) but when her leg points straight out, I choose what's going back and what's coming forward.

I think, therefore, I get bananas.

When in doubt, think about time travel conundrums. You'll confuse yourself so you can forget what you were in doubt about.

What's the difference between ignorance, apathy, and ambivalence?
I don't know and I don't care one way or the other.