When walking around through the plaza/condos, people’s heads are always facing directly left or right instead of in between when they’re sitting.
I’ve found that when I’m the host in my condo I can see people’s heads moving around in seats (left/right, up/down), but when I’m not the host I can only see their heads move up/down.
Testing with friends has confirmed that only the host can see the horizontal movement, and no one else can.