First thing's first: DO NOT OVER-ACT. The Mademoiselle is a straight-faced killer, similar to beep from Kill Bill. She's gone through too much to let anybody know what she actually feels. All the audition lines are taken from the very first episode of the series, so her senses are still getting used to the tough Old West, and you should act like it for the first two lines. For the last one, however, I want to see your most stoic, ruthless delivery possible.