The sense of familiarity might be the reason Zagreus approached this stranger in particular. The shades of the underworld are strange and varied, sure, but this "other world" place has been even moreso.

It's probably not smart, but in his defense, Zagreus has barely been off his father's doorstep before. This is a lot for him.

Zagreus takes up a chair next to the stranger and picks up a box. He sure hopes it's this simple. Memories of the last time he sat down in a chair in a busy workspace and found out the job wasn't are not helping.

"Alright, next step?"

Maybe if he's lucky he can figure out something about who this is before they hit proper introductions. That would be handy.