How do I know she's a faker?

I hear Kenly wake of from nap today. Imagine a whine that starts low and builds in intensity.

Through the monitor I hear: Mommy. Mommy. Mommy. Mommy. MOOOOOOMEEEE. She starts to whimper as if something is truly wrong. MAAAAAMEEEEEE!

I hop up in a sleep induced haze because I too have been napping and rush into save my daughter from whatever peril has befallen her.

I swing open the door to discover the source of her pain, and....

Kenly's face brightens. A smile spreads from ear to ear and she says, "Hey Mommy."