Carolyn does this really weird thing with her right foot. She has done it for as long as I can remember. If Carolyn were ever to be abducted by aliens and replaced with a body-perfect replica which didn't happen to do the foot thing, I would know that it was an imposter and would inform the authorities immediately.
They say a picture is worth a thousand words, so here are 2,000 words' worth of pictures to show what I'm talking about. Both photos were unposed, and taken without Carolyn's knowledge.