For just that tap of a fleeting moment, Sephiroth's smile flashed up and near enough reached the corner of his eyes as Rukia bumped his arm. He could return the gesture, of course, but instead took another sip from his glass.

"I wasn't ever the joker-" Internally he took a sharp breath in. Genesis. How easily, even though it had been months -potentially even over a year now?- since his once-friend had fallen into the stasis. The friendship that was broken but could well have been mended if he'd made a bit more of an effort- "-but I take your point well enough."

As the atmosphere between the two of them continued to loosen, he did indeed seem to come around to what had been the true nature of her folded arms. Casual, really...the gesture lacked the stiffness that would associate it with negativity. Perhaps he'd just gotten so used to seeing the world through a darkened lens?

Quite likely, given how his pessimism had been running rampart for a while.

"Careful." He warned, but with a definite mock of an edge to his tone. "I'm certain you wouldn't want me treating you as your age."