The eyebrow trick is raising your eyebrows to the point where you create frown lines in your forehead. And it's sort of like, excuse me, mate. Raising the eyebrows is if to say, yeah, I would like to be served, please. If they're not looking at me, excuse me,. Sorry, mate. You get their attention and you apologize already for having interrupted what they're doing. Apologize. That's the that's why the pub is here.