← ALL CATEGORIES
MIND GAMES
Suggestion, prediction and influence games that mess with expectations
1 OF 5 THIS SESSION• RANDOMLY SELECTED
YOUR TRICK
THE INVISIBLE YES / NO
Let tiny finger movements answer a question before they consciously decide to move.
01
WHAT THEY SEE
The participant rests both hands comfortably while one finger becomes the “yes” signal and another becomes the “no” signal. When a simple question is asked, one finger begins to twitch or lift with surprisingly little conscious effort.
02
WHAT YOU SAY
Rest both hands comfortably and let the fingers go loose.
We’re going to give your imagination two tiny signals.
Let this finger mean YES... and this finger mean NO.
You do not have to move either one deliberately. In fact, try to stay curious about which one wants to respond first.
Think of something simple that you definitely know to be true.
Ask yourself the question silently and just notice whether the YES finger wants to twitch, lift or feel different.
Good. Now think of something you definitely know is false and notice what the NO finger does.
Interesting, isn’t it?
03
HOW TO DO IT
- Have the participant sit with both hands supported on their lap or a table so there is no effort involved in holding them up.
- Choose one index finger as YES and the other index finger as NO. Keep the signals simple and visible.
- Ask them not to force a movement. A twitch, tiny lift, change in pressure or distinct sensation is enough to count as a response.
- Begin with a statement they know is true, such as their own first name, rather than anything emotional or uncertain.
- Give several seconds of silence after the silent question. Ideomotor responses are often subtle at first.
- Acknowledge the first small response without exaggerating it. Attention tends to amplify the next one.
- Repeat with an obviously false statement so the opposite finger has a chance to respond.
- End after one or two clean examples. This is a demonstration of unconscious responding, not a lie detector.
04
MAKE IT LOOK RIDICULOUSLY GOOD
THE SHOWMAN’S EDGE
01Tell the audience before you begin that the movement may be tiny. That makes everyone lean in and watch rather than expecting a dramatic arm movement.
02Use questions with known answers only. The cleaner the truth value, the cleaner the demonstration feels.
03Keep your own hands still while waiting. If you gesture around the fingers, people will watch you instead of the response.
04Do not call a barely visible movement before it happens. Wait until there is something real to point out.
05When the first finger responds, say ‘there’ quietly rather than celebrating. Subtle certainty makes the moment feel more genuine.
06Avoid turning it into a test of secrets or deception. The strongest framing is ‘watch how the body responds to an idea.’
07Finish while curiosity is high rather than repeating until the effect fades.
Use only neutral questions with known answers. Do not present the effect as a reliable lie detector or use it to probe private information.
SAFE • RESPECTFUL • SERIOUSLY IMPRESSIVE