Look at my forehead!

My younger sister came home from school one day, obviously elated beyond belief about something. She was dancing and prancing around. When I asked her why she was so happy, she whispered excitedly, "I can do something no one else can do." I asked her what that was, and she exclaimed loudly, "I can look at my forehead!!!" She rolled her eyes to the back of her head and danced around, obviously proud of her new accomplishment.