method : the audience thinks the magician pulled the top card.what you've actually done is pull out 2 cards.note:they must not see the card behind the 1st one. then put thecards backat the top and put the top card (the card the people didnt see) in the middle or any where you like.the card they saw is still at the top

this is what happens: So,when you pull out 2 cards,the people only see the card in front, the card in the back is hidden.When you put the cards back ,you put the card at the top (the top card is the one they have'nt seen,behind the card you showed them.when you put it in the middle, the shown card is still at the top

                            have fun!!!!