You then ask them to put the card back into the deck, and ask them to shuffle the cards. When the cards are completely shuffled you take the cards back.
You then throw the cards at a window and the spectators watch in amazement as the card goes through the window and sticks onto the other side of the window whilst all of the other cards fall down to the floor.
You can do this on any window, inside a shop window or even possible to do into a vending machine which is very powerfull.
To prepare for this trick you need 2 decks with the same back design. Take a card from one of the decks and plant it where-ever you can plant it. To get it into a vending machine you will need to get permission from the person that maintains it.
Once you have planted the card you are ready to perform. All you need to do is find that same card in another deck and put it into the top.
Step 2: Method
You have the card that you need the spectator to pick on the top of the deck. You are going to use a "force" to force the person to take that card.
The one i am going to teach you is called the riffle force however you can learn many others such as the classic force by searching in google.
What you are going to do is cut the deck and hold a "break" where you cut it. A break is where you place your pinky finger in between the two packets of cards to keep them seperated. You do this from the back so that the spectator cant see from the front
You then start to riffle down the deck with the thumb that is holding the deck and ask them to tell you when to stop. Where ever they tell you to stop you are going to pick the cards up at the break. This will be completely un-noticable to the spectator who will think that you just cut the cards where they told you to stop.
You are then going to hand the card they told you to stop at to the spectator and at this point the trick is pretty much done. From now on you just have to worry about your performance and building tension to make the effect for powerfull. Ask the spectator to put the card back into the deck and shuffle them. Let them shuffle untill they are completely satisfied because it does not now matter where their card is.
When they hand you the deck back do not tell them what you are going to do. Just simple say something like "Watch this". Throw the cards at the window and then just let them react. It is best just to stay quiet at this point.
Do not worry about their card still being somewhere in the deck. They wont notice because they think their card is at the other side of the window so they arnt going to be thinking about the rest of the deck at this point. If their card happens to be face up just keep their attention away from it.
Dont go straight away to pick up the cards. Let them react first. After a couple of minutes you can then start to pick up the cards, and most of the time the spectators will help you. If you see their card face up dont go for it straight away but cover it with your leg or foot at you pick up other cards.