A Lesson in Symmetry

We've been letting NJ pour his drinks. He's been getting his own water for longer than I can remember from the fridge door, but I didn't think about him pouring anything. I picked him up from school one time and he was pouring his own drink. I was impressed and wondered why I never thought of letting him do that. Even if I did, I'm sure I'd stop myself just at the thought of what a mess it might be. 

I can't remember how it came up, but NJ wanted to know what symmetrical was. So Baba was trying to explain to him by using his face as an example of symmetry. It made him laugh, but I'm not sure how much NJ learned.