i don't have anything specific in mind! hmmm off the top of my head:

-them talking at some point about their deal w/ van
-post-game, w/ them checking up on each other and/or catching up :V
-cooking??
-guy could ask tear to show him around yulia city like the giant nerd he is

i'm down with anything tho, if none of these tickle your fancy \o/ gen, fluff, angst, shippy i can roll w/ p much all of it