I happened to be exploring the tower and cam across something interesting. At first I noticed people gathering on top of the postmaster's building. No big deal. Just a few Guardians sitting down together. I went about my business looking for something interesting to do when I came across it. An area that allows you to activate the fan. I sat myself down in view of the people and hit X. Immediately all of them went soaring into the air. I hit the button again just for fun and stood up to leave. But the people kept jumping. I stayed and watched as they frantically tried to activate the fans themselves and soar into the air. It was honestly hilarious. So I sat back down and kept going at random intervals, just to watch and see how long it would take them to give up. I soon got bored and went on to Exploration. A few hours later I returned and a whole fireteam was up there. I couldn't resist. So I went and did it all over again. Soon more people joined. I decided to stick it out until they gave up or someone found me. After at least five whole minutes of this, two level 8 players finally noticed me sitting there alone and came to investigate. I got up to let them see what I had discovered. One of them, the male Titan, sat down in my spot and looked out at the same fan. I couldn't help but laugh for a while. These people were frantically trying to figure out how that fan worked only to finally realize that it was a player the whole time. I'm not sure if anyone else has found this or not, but I figured I'd share because it made me laugh. After all that, I found a soccer ball at the base of the stairs and kicked it around for a bit before it got stuck in a corner. I'd say it was a productive day in the life of a beta tester.