Wait for the pause

You take a sip of your beer every now and then while you wait for the next opportunity. Her looks towards you have gotten more frequent, it seems like you're on the right track. Everyone aside from you and the girl is staring at the stage right now. With nothing to do she's leaning against the counter, listening to the music and apparently desperately trying to ignore you. It's quite obvious that she's not experienced, otherwise she would use this break to prepare as many drinks as possible for the pause in a couple of minutes. You could tell her that, but that would rob you of an opportunity.

A few more minutes pass until the music gets quieter and the pause is announced. Suddenly everyone is moving towards the bar to get their glass refilled and it becomes obvious that she won't be able to handle it.