For this trick, you need to do a little bit of preparation. Grab a nickel and palm it. Then grab a dollar from your wallet, or ask someone for a dollar bill.  The nickel will be used to balance the folded dollar on your thumb. Your audience shouldn’t know that you have the nickel.   This is a simple trick to do pretty much anywhere. A nickel works well because it’s small and heavy enough to provide a counterbalance.
قم بإحضار عملة ورقية وعملة معدنية.