I have seen a few as I have come and gone. Most are upper middle class to upper class, most are dressed very professionally. The vast majority drive recent years of higher end cars. Most come of as snooty or disgruntled and sitting there like they are waiting for a painful procedure at the dentists. They seem cold, distant and disconnected from the world around them.
Although the “one” I enjoy running into most is the other T who is in the building and uses my T as a supervisor. She can be appropriately assertive and outgoing when greeting her clients but is always shy and almost apologetic around me. T has joked with her about taking me on as a client and I thought she would surely keel over or melt into the carpet. She drives an expensive red car with a child seat in back... I always make a point of greeting her in a friendly manner to ease tensions.