Where can I find the Telepath computer prank?

Where can I find the Telepath computer prank?
"There's a prank for your computer described on PC Advisor called Telepath. Here's the description:
Your friends may have a hard time figuring out how your computer can telepathically communicate with you. To set up the prank, step out of the room after asking your friend to make a selection from a menu of choices. Then, upon reentering, you can tell them what their choice was--without even looking at the computer screen. Sound too amazing to be true? It's really a simple trick--although it does require a bit of arithmetic (nothing more difficult than what a five-year-old can do). Online help and a complete explanation are provided, as well as optional sound effects."

=================
Cheap Flights|Cheap Holidays