Things You'll Need:
Very strong discipline
Ability to calm yourself down and concentrate
Step 1 You will be led into a room, usually with no windows and a bright colored chair (sometimes bright orange) with no foliage or anything to give you any sense of calmness. You will have to remove yourself from your mind and imagine you are watching yourself on a movie rather than participating in the actual interview or polygraph.
Step 2 Clear your mind. You will be given a series of questions that are "test" questions to calibrate the machine. Usually this will be your name, address, info on brothers sisters etc. When answering these test questions, think of situations in your life that have made you nervous. Be sure to become a bit jittery but not overkill. Breathe a bit faster during test questions.
Step 3 Then the real questions will begin. You will need to try to do the opposite. Imagine yourself answering questions from a 3rd person point of view (again watching yourself on a movie). Do not try to breathe faster or be nervous. You will naturally be nervous and breathe faster but try not to. What this will do is average your nervousness and vital impulses out with your "test" questions.
This will create an average with your "truthful test" questions and it will show that you are not lying.
Step 4 Practice these techniques on your own if you ever feel that you will be forced to take a polygraph (only in some foreign countries are polygraphs forced). Repeat the process over and over again in your head.