As a college student working in a restaurant to make some extra cash, this topic is very near and dear to my heart. Of course, I appreciate everyone that comes in, I just think that some of them could use some refining. So here are some pointers.
DO NOT SNAP AT YOUR WAITER. This is just rude, and it really makes your waiter hate you. Just so you know. And would you like it if someone snapped their fingers at you? I didn't think so. Therefore, don't do it to them!
DO NOT BE ON YOUR CELL PHONE WHEN THE HOST ASKS YOU HOW MANY PEOPLE ARE IN YOUR PARTY. Really, what you are talking about with the person on the other end of the line that is SO important?! One day, you might get punched in the face. The simple solution is to wait until your conversation is over. OR. You can tell the person you are talking to, to "HOLD ON." It's a really simple solution, right?
DO NOT QUESTION THE HOST. We all know that the "customer is always right," but really? Shut your mouth. When the host says that the wait is about 10 minutes, you agree and walk away. Don't stand there and stare at them like they told you, "You have cancer." It's not their fault that the restaurant got THAT full in 30 minutes. It happens. And just because you live where "The Real Housewives of Orange County" live, does not mean you get special treatment. We don't treat anyone better than anyone else. Sorry. But get over yourself.
IF YOU CALL AND THE RESTAURANT DOESN'T TAKE RESERVATIONS... Don't ask them to take one for you. You are not that important. And when the person who works there says they are sorry, don't be like, "UGH, WELL I THINK THAT IS A TERRIBLE POLICY!" Get in line sista! There is a high chance that the person who just denied you, is not the person who made the policy, so don't make them feel bad about it.
I think that that covers the basics, but if I can think of anything else, I'll be sure to let you know.