This is a scene that I first witnessed upon leaving a casting at around 6pm. I then saw another version of this on a morning run at around 10am. I cant say exactly what they are doing, but I imagine this dance is some sort of pre-shift, team building, energy boosting exercise. According to some friends that have been here for a while, similar dances can be seen in front of most hair salons throughout the day. From what you can make out in the video, not everyone seems to be feeling too energized.