Deptka also isn't an aspiring anthropologist. For reasons that are going to be entirely opaque to Zarian for the moment however, Deptka has put a lot of time and energy into figuring out the sometimes unspoken needs of deeply eccentric oddballs and takes pride in doing that well. Usually the oddball is Patik, and Deptka is perhaps overspecialized in figuring out what Patik needs, but the mental move is at least available.
So Deptka is going to notice that Zarian's eyes are closed. That's new. Is it too bright? The light hasn't changed much, though it's getting dark. Something she doesn't like looking at? The food and the tent are new. If Cretari don't usually eat, maybe eating is aversive. There's always the guess that there isn't anything wrong and Zarian just likes to carry on whole conversations with their eyes closed. The next best guess is that Zarian is overwhelmed in general, which would make sense after winding up in a different world.
"Question:," Deptka's voice is gentle, softer than it has been. "Is something bothering you?"