areoflirt - trying on the uniform used to be part of the interview process but it isn't now.
Disko Biscuit - in my opinion you can plan your own career path and the company will support it. I have worked in quite a few different departments and my career so far has not followed a conventional route! The logical progression through the flying ranks would be Junior, Senior, Purser and Inflight Supervisor. There are many office based roles available including Cabin Crew Training. Best of luck with your interview.
NJR - I think "The Truck" is great. I was there on Christmas Day!!