It's gotta be the hair.
I was taking a call early this morning on our back patio with a friend when S came downstairs and found me. He crept out the open sliding door to peek over my monitor and say 'hi.' My friend hadn't seen him since he was four when she and I co-hosted a leadership retreat out in CO. She took one look at him and remarked, 'Your hair is awesome. I love your hair.'
S smiled bashfully and then slowly opened up before quickly turning downright chatty.
Coincidentally, later this morning K trimmed up his hair to let it grow out again over the summer. But not before I got some photos of it the night of awesome weather.