>>Not quite. They don't rehearse the vows or speaches. Those are saved for the ceremony itself. Not everyone does rehersals, typically only big, fancy weddings.
>
>Yeah, I figured it's only the fancy weddings, and not universal but - a meal - what's to rehearse? In case they don't know how to eat right?

I think the staff needs to map the guests' drinking habits, so they'd know what (and how much and how often) to serve to whom. And for whom to reserve the larger waiters.