Listening to the episode and the discussion about Audrey and the cherry stem was really interesting to me because I think the scene works in two ways - it obviously (as Jake and Chris postulated) seems like a trick she practised but it had a deeper and more sad implication to me given the circumstances surrounding where One Eyed Jack's hires from. It is a trick that gets brought up quite a bit as a colloquial trick that women, if they can do it, are obviously not only experienced but valuable. It feels like Audrey would learn something like that without realizing what that skill might actually deeply imply and has a lot of the air of her being a real high school girl - constantly and dangerously sexualized but not quite grasping what that entails. Her experience with OEJ in general is her realizing that.