Overlooked Apartment

In my dream, there is a second apartment which I forgot about.
The complex consists of six identical three-floored buildings with four apartments on each floor.
The 72 apartments are nearly identical except where they are mirrored across their hallways.
Each building has a stairwell in the rear that leads to a shared first floor corridor.
I am lost, looking for my old apartment. I freely go in and out of the other apartments unnoticed.
Each of the apartments I search are decorated differently, most of the residents are absent. Some of the residents that loiter nod to me, and I am eager to impress them by glitching through the walls.
It is a talent I've been perfecting, whereby I walk into the wall, phasing in and out as I advance.
I also try to impress them by jumping up, holding my breath, and floating about.
No one is interested in my tricks, so I resume my search. ...More