Select any person, ask to put finger on the screen (scanner box) and ask her some fun questions, such as: - Do you love me (or name your friend)? - Do you like our math teacher? - Do you change your socks everyday? - Have you eaten whole chocolate? - Did you go to bed yesterday before midnight? - Did you make her(her) a prank? etc. Invent the funny questions for your friends and check they tell to you true or false answer. We guarantee lots of laughs and great fun! Instructions: - Tested person puts a finger on a scanning box, - Ask a question (funny), - Tested person is answering and when he/she finish, take off the finger of the screen - on the Lie detector screen you can see the answer was: true or false Have fun! :) Note to the inquiring: Fingerprint Lie Detector is a funny play application (not realy typographer or polygraph), it detect lies with about 50% success :)