Quote:
the large amount I want to take out
There is your problem IMO, it could have been that
you made her flustered, but with only a brief chance to show her how good you are, I doubt it. How much of a large amount are we talking? Alot of people get nervous handling large sums of cash, especially if your under pressure ie new to a banking job.
Maybe go back and tease her about it. I'm not trying to put you off it but gaming a bank teller would be EXTREMELY difficult, the physical barrier is MASSIVE, this is very damaging for the psychological, building a repertoire and the fact that there will be other customers will mean she will rush you. You'd have to be blatant and cut to the #-close and work your magic from there.
Good Luck!
Mildawg