Jyn studies the girl's hair for an indication of what the elf might have gotten uppity over. It looks fine to her. She takes that to mean the creature is just psychopathic.

"If it is a menace, we should take it where it can't hurt anyone else. Do you know where the nearest, um..." She takes a moment to search her memory for the correct term. This world has stores, not marketplaces. They each sell a larger variety of items, most of which she's never seen before. But she knows she'd passed a "pet shop" somewhere. "...'pet store' is? Perhaps they would know where to keep it, besides in a jar."

Jyn is so focused on her little annoyance that she hasn't noticed light steam seeping from the ground. The more irritated she gets with the thing, the more steam the ground lets off, and it seems to follow her when she shifts her position, almost as if her frustration is manipulating the ground she steps on.