[xenthebrain]

I can change the direction of the dancer by looking at one of the sides at the point where her hand is the furthest away from her body.

If I focus that point on one side to get one direction and vice versa with the other side.

There is no real turn around, the first half of the turn and the second half is exactly the same, just mirrored and since she is all black you just assume it's the right or left hand, when actually it could be both.