When you live in a place with dozens of other people, the sound of footsteps filling the building (tree, really) is something you learn to quickly get used to or lose your mind being bothered about. A month isn't really that long, but it's long enough to get used to most of the things about this place: the lack of modern indoor plumbing, the use of the well, old fashioned cooking, and a whole lot of people living in one cramped space. So, yeah- Tsukishima isn't really concerned at the sound of activity in the background. He stays focused on what the job at hand, spacing out as he tries to figure out the rest of his week in his head. There's not really a lot to do here sometimes, but what can you do?

At least, he stays focused until someone is swearing behind him.

If nothing else, he has the good graces to wrinkle his nose while his back is still to the person behind him. When he looks behind him a second later, his expression has fallen into the usual placid look as usual. "He's a friend's, actually, but I watch him sometime." As though he absolutely didn't get a little excited at the idea of a little dinosaur thing and is totally not the one who dubbed it 'Ian'. Tsukishima's gaze flicks over the older man, quickly assessing him, before he shrugs.

"I haven't seen you in this place before." Not like he's gotten familiar with everyone... But you learn to recognize regular faces in a place like this. "Did you just show up?"