In front of a surveillance camera installed in a public place, either a single performer or a group of performers takes turns holding up (at least) two placards: one that says SOMETHING INTERESTING MIGHT HAPPEN; another that says PLEASE STAND BY. Each placard should be held aloft for at least 15 seconds (longer if possible). The performance, i.e., the alternation of the placards, should last at least 15 minutes (longer if possible). If desired, the two basic placards can be supplemented by others bearing upon them such statements as KEEP WATCHING, IT WILL BE WORTH THE WAIT, ANY MINUTE NOW I'M SURE, PLEASE BE PATIENT and so forth.
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