Remove any items from your pockets that might fall out as your crowd surf.
Remove any jewelry that could be ripped out or stolen while you're crowd surfing.
Make sure that you get rid of all of your valuables, such as your cell phone, wallet, keys and anything else of vital importance that might be lost.
Give all of these items to a trustworthy friend to hold.
Prepare yourself mentally to crowd surf.
Find at least two good-sized guys to help launch you. The bigger, stronger and more numerous the people are who help launch you, the less chance that you won't make it on top of the crowd.
Flatten out your body. It's important that you flatten your body out, thereby evenly distributing your weight across many different people. This will help the crowd under you to bear your weight easily and prevent you from being dropped.
Keep your head elevated. This will prevent anyone from pulling your hair or smacking heads with you, and will also keep you from falling on your head if you're dropped.
Stay alert. If you feel yourself being dropped or think someone can't support your weight, try reaching out for support on nearby people.