... Also i would really become friendly with the management and staff before working at the restaurant. You want them to be on your side. Thats why another thing is that most of the tips you get need to go towards the staff, not you. Start working for maybe $25 an hour and see how that goes after a couple of months. At least 60% or more of the tips you recieve should go to the waiters and waitresses waiting those tables... My tip is to get some advice from magicians who really work in the field...
Some good information here and some bad info also. I'll start with the bad information because that is the shortest.
I've been working restaurants for 9 years now and have always accepted tips. I NEVER, EVER TELL ANYONE how much I make in tips. I've even had servers say "Hey I made $100 tonight how did you do?" My answer is always "I don't know. I don't even look at them until I get home."
Also if the place is really busy, I will buss the tables and even refill customers drinks for the servers. I stay out of their way and never approach a table until they have been there for the drink order or if they are at the table. I always ask the manager on duty if there is a contest that night (sometimes the manager will give out a prize or even a $25 bonus to the server that sells the most of a certain item) and if there is when I get to the table before they have made a food order I will tell them "Try the (whatever the contest item is) I had it before I started and it is really good."
All that makes friends with the waitstaff and they in turn will help you.
Everything else is very good information (except for Jay Sankey but that's just my opinion of him) so follow that and start slowly. Remember that you will be an entertainer, you will be representing the restaurant to the customers and you will also represtnet all of us to the restaurant. So be very good