"Look, Mommy, I found it he mommy!" explained

Obviously no one is figuring this one out. I have to admit, it's pretty tricky.

If you look carefully at the picture, you can see a few pairs: Xx, Tt, Uu and hidden behind her hand there's Ii. She's matching upper and lower case letters together, thus the "mommy" and the "baby"!

Isn't she creative?!