Elevator Efficiency

I witnessed an exchange during my morning break. After walking around the building, I came back inside and entered the elevator with two other people. Pink, sparkly, "be-dazzled" girl in her jeans was first, then a messenger, then me. She was very talky and noticed that the package was for her so she signed for it right there in the elevator. She got off on the third floor and the elevator across from ours was going down so she turned around and said, "I would get off and go on that one to get back down." He promptly followed her instructions, darting across the small elevator common meeting space and my elevator door closed.

Doors opening. Doors closing. I'm watching them all the time while carrying on my way.