THIS SHOULD MAKE YOU THINK A BIT, PRETTY GOOD CARD TRICK TO TRY TO FIGURE OUT:
You can see 6 different cards.
Think on one.
Just think on it.
Do not touch it
Do not click on it
I will find the card on your mind.
Now look straight into my eyes and think on your card....
I do not know you,
I could not see the card you have
chosen....
....but I know exactly
the card that is on your mind....
Look Your card is gone!!