Learn a range of basic tricks, like turning water into ice, which requires an opaque cup, a sponge, ice and water in a jug. You can also use a 12-inch rubber band and a borrowed ring from the audience to make a ring climb. Simple tricks like these are easy to learn and fill your act with fun.
Add a few show stoppers to your repertoire. Harder tricks like levitation, making people disappear and sawing a woman in half require special props and lots of practice. Since many tricks only work when seen from the right angle, try to work on tricks in front of a mirror.
Perform each trick only once to maintain illusion. More attempts may help the crowd figure out your magic.
Learn a variety of basic tricks from GoodTricks.com (see Resources below). These are simple tricks that may help you put on a basic show, and most do not require expensive props.
Decide whether you need an assistant or whether you will bring one on stage. A beautiful assistant may attract her own fans, while asking a child (or adult) on stage brings the audience into the show. Make sure you are comfortable with any trick a volunteer helps with in case something goes wrong.
Talk to the crowd instead of just performing your tricks silently. Injecting personality and humor as you interact with the audience will help you stay engaging for the whole set. You can also add sound effects to cover quiet areas of the show.
Get in the mood by picking up a copy of "Magic Magazine" (see Resources below). You'll find plenty of help and tips for putting on your own magic show.
Invite your friends and family. Packing the crowd with familiar faces makes it easier to perform, especially if this is your first show. Buy extra tickets to treat a few guests, so you can be sure at least one friendly face will be in the crowd.
Ask the owner of the venue what is allowed on stage and what is available for you to use. If there is sound and lighting equipment available, make good use of it. You may have to adjust your act to account for a small stage, lack of curtains or inability to interact with the audience.
Wear a costume the night of the show. Until you are a recognizable magician, wear a top hat, cape or something that screams magic. This adds to the mystery and makes you seem unique (at least more unique than the other 10 guys in jeans and t-shirts).