Hey, seeing that this is a forum that we are supposed to help other magicians, I'll do my best. The best thing for walkaround is to go to as many restaraunts as you can that feature magicians. Talk to them if you can, watch closely, see what the audience seem to like or dislike. The next step I would say (obviously you won't like this answer) but read all that you can. Then find what tricks work for you, and what tricks don't. You need to make sure that you're not just doing the tricks as well, you're there primarily to entertain, that's a big mistake I'm sure quite a few of us have done at least once. Don't rush into things, because unfortunately, not too many restaraunts take 13 year old magicians too seriously, trust me, I just turned 14. Take those next few years to improve all you can, because the last thing you want to do is perform too early when you're obviously not ready.
Please Wilson, Listen to what he is saying. Learn how to do restauraunt magic, or kids magic, before you become the magician of that sort.