I was told by a client of mine who is an attendant told me to wear my best business attire, heels, hair back in a tidy bun, nice make up and a smile. Always be positive, when answering the scenario type questions remember to describe the Situation, the Action taken, and the Outcome, and try to have a few specific scenarios in mind before you go, instead of making it up on the spot. And always be positive in the group discussions. This is the advice I was given, and I trust it works because I just got offered the job today
. Good luck!!