The best way to prank your friends is to ask them to place their finger on the fingerprint scanner, or to say the answer to a question. The result will be shown on the screen and they will be surprised with the answer. They will not believe the results and will think that you are lying.

You can use the Lie Detector Simulator as a prank to make others believe that you are a master of truth and lies. You can use it to find out the truth from your friends and family for fun. Download the app and try it out.