Heya..
I think you've got it all wrong.
"Virgin Flair" is all about doing something spontanious for the passenger/guest. An act in which will leave the guest walking off the aircraft with a memory in which the Cabin Crew gave them personally.
Making jokes and full of smilies is meant to be part of Virgin's CC job on a day to day basis, "Virgin Flair" however is making the airline unique by leaving a warm stamp in the mind of the traveller.
There.. I said it - the secret is out now
