What changes, and what stays the same? Yeah, that's definitely one of the things I've been asking myself about.

[ He gives Clark a tilt of his head, then adds a smile to it a second later. Too much time around Abel recently (or wishing too hard that Abel was with him now) has left him hoping nonverbal, unintuitive cues will make sense. Stop that, Cain. ]

It's a good observation. Innocuous, too.