This is a great trick for a parlor size crowd, though it could be done close-up. This falls down to
presentation, as there is no sleight of hand required and only a very simple single thing to
remember. The prediction cannot be examined in the end if you do it as presented, but who would
actually want to? It looks so straightforward there's no suspicion.
This cannot be
repeated for the same person because the outcome will be similar (you have two possible outcomes
through three possible revelations). Still, it would be so easy to adapt this to a larger stage
audience once you learn the concept. This is one of those perfect presentation tricks that you can
customize to a trade show, corporate audience, etc.