Always sit straight up in your chair, never leaning backward, nor forward. Never let your elbows touch the table (though you can put your hands on the table all you want). When eating, do not bring your face toward the plate (a la a pig's trough), but bring the utensil up to you. You're the master! But what if you drop something? You should suavely signal a waiter so that (s)he could replace the item. (Don't pick up the dirty fork and put it on the table. That's just gross.) But if it's your napkin that escaped, just excuse yourself as you lean down, pick it up, and continue with whatever you were doing.

SoYouWanna know more? Check out our full-length article SYW improve your table manners?