A couple of quick anecdotes.
1) The other day, Charis found a bottle of nail polish and brought it to Abe, who was sitting on the couch. "Toes, please?" Charis said. Abe shrugged. "What the heck?" So Abe painted her toenails. And while that's plenty cute, it gets better--Abe was blowing on her toes to speed along the process, and when he would stop, she would nod slightly, as if to say I'll take it from here, and blow on her own toes. It was darn cute.
2)On the same day, I took Charis upstairs to go to bed. Before we could start into our bedtime routine, Charis took the baby doll she was carrying and placed it in the baby cradle. "'Night, baby," she said, and proceeded to cover this tiny baby with a double-size thermal blanket. Then, after she had covered the baby, she cocked her head to the side, looked down at the doll, and said, as if responding to a request, "Book?" She walked over to the bookshelf and picked a small book out, carried it over tothe cradle, took the doll out, and sat it on her lap and proceeded to "read" the story to her. I just sat down on the floor behind her and watched. When she was done, she tucked the baby back in bed, and then Charis and I repeated the procedure all over again.