B usually only agrees to a picture these days if she can make a "silly face." This is her current version.
I'm assuming the term "monkey see, monkey do" was coined when the very first sibling came about. This kid wants to do everything his sister does. It's pretty stinkin' cute, but Birdie doesn't always agree. I say something to the effect of, "He just wants to be by you/like you/close to you/do what you're doing" many, many times throughout the day. In her defense, she's pretty tolerant considering he's like a miniature Donkey Kong crashing about our house.