How Does She Do It?

Amy was only five years old when her brother told her exactly how the tooth fairy got her tooth from under her pillow. Do you know? How does she do it?
"Amy didn’t have to be told twice to go to bed. She jumped into bed but was afraid she wouldn’t be able to sleep. She slipped her hand under her pillow. Her heart skipped a beat. Yes, the tooth was still there. She touched the empty hole in her mouth with her tongue."