You.

At thirteen months:

You, playing hide and seek and cackling with delight.

You, bringing  me, for the first time, a book you want to read.

You, talking so much, with new words emerging every day ("Dada" and "Pop Pop" and "banana," among others).

You, throwing yourself into a morning hug.

You, looking more like me every day (and more like my mother).

You, saying "bye" and taking my car keys to the door.

You, signing "more" at breakfast.

You, eating whole sandwiches.

You, making animal noises in the bath (your current favorite is "lion").

You, with a big, four-toothed grin.