I didn't notice it when I took the photo, but I saw it later: C is holding M's hand.
To me, this little gesture says so much, maybe more so because of its subtlety. It's easy to think C isn't quite there, that he's not present, that he doesn't need the rest of us. But he does, and it's these little signs, these seemingly minuscule gestures, that prove it. You don't hold someone's hand unless you want to connect with them, unless you need and want them in your world.
This is an affirmation of C's desire to connect, and I'm grateful for it.