Penn and Teller's Smoke and Mirrors/What's Your Sign

What's Your Sign is a simple trick about figuring out someone's star sign, and as a surprise, their birthday.

The trick is as simple as you entering the birthday from the owners menu ahead of time. Once the date is set you can simply launch the trick from the sucker menu and let the game do its thing.

Pay attention to the title screen, it will covertly display the set date as part of the fake patent id.