Mind reading magic tricks with cards using simple key cards technique.
This is one kind of very popular magic tricks with cards.
This actually is a simple finding card tricks technique that was very popular in card tricks, where the magician find the card that has been choose by audience.
The tricks is using a simple key card technique to find the chosen card, and then make it as if the card found by reading the audience mind.
How to do mind reading tricks with cards - Video tutorial