He can see the differences in Shikamaru now that he is looking for them. The only thing that keeps this from bothering him more are Shikamaru's actions and words. They're just as familiar as ever. He may look a little different, be a little older, but who Shikamaru is at his core hasn't changed, and the way he treats Chouji hasn't either.

The physical comfort is appreciated. Between it and Shikamaru's next words, Chouji doesn't even have to try to summon up a smile. Being worth the trouble is one of the highest compliments Shikamaru gives, and he knows it.

"I don't really have my other questions planned," Chouji admits, knowing he really should care more about the situation past where his teammates are involved. "What do I most need to know? Lee told me to make sure I protect my wings." Plus a little bit about the enclosure. Shikamaru already knows he's aware of time differences and of the presence of those who have died in their own world.