USDEFFECT
One bullet. Six chambers. One Ace of Spades. Six positions among five red cards. You give the cards to the participant for examination. The participant secretly inserts the "bullet" into one of the six chambers and hands you back the "gun".
The cards lie on your wide-open hand, you don't even look at them. You look at the participant. He knows where the bullet is. As you deal the first card face up, you say: "clic". The card is red. Empty chamber.
You keep looking at your participant. How does he feel about the next one? You deal the next one face up. Red card, empty chamber. Clic. The tension builds. You keep staring at the participant.
You deal the next card face down and say: "Bang!". You now turn the remaining cards: all red. The face-down card is revealed. The Ace of Spades. The participant smiles. What on earth gave him away?!
No force, no peek, you don't even look at the cards. The cards can be examined. The effect can be immediately repeated.
