If I can't see you, you can't see me

This is one of those funny things that Anya will grow out of (or so we hope) and we'll never remember if we don't write it down.
Anya is getting a conscience: She knows when she's doing something wrong, and doesn't want to get into trouble. So if you catch her, the first thing she does is hide her eyes in hopes that you won't notice her doing it.
She usually laughs nervously just a little while doing it. An "It's so crazy it just might work!" sort of chuckle, so I'm not sure if she really believes in the techniques effectiveness. But she sure tries it a lot.