You show up at 10 at BEST she's going to think. "He doesn't know how to party."
HM is right. Chat with her a couple times while she bartends. Get her to start putting you on her guest list. Tell her you're partying on a week night that she's off. Get fucked up with her Wednesday and rail the shit out of her.
Or hope you're there on a slow night she doesn't start and same plan that night.
Or fuck her in the office downstairs... that's how the female customers pick me up at my bar. It works the other way around right?
Bar staff want to smash. Picking up a bartender isn't as hard as you think.