We did this, or I should say we tried to do it, the last time we were there. My daughter had just come out of BBB dressed and done up as Tinkerbelle and a nice couple next to us told us the best way to get to wake-up TinkerBelle. He said you have to RUN to the store and YELL I want to wake up TinkerBelle. Well, my DH did, got yelled at for running, but managed to get in there and secure the ever elusive Wake-up Tinkerbelle.
It is behind the checkout register to the far left in the store. You tap the box, say something and then Tink is supposed to come out of the box and fly around and end up somewhere, but she must have been tired that day, because it didn't work. (Figures!! I figured it was a sign for my DH running and breaking the rules. But it sure was funny to watch a grown man run into a store and yell I want to wake-up Tinker Belle!!)
As we were shopping around, we finally saw Tink, flittering and lighting up her way around the store. My kids didn't even notice at that point.