A spectator selects at random a card from an invisible pack - let's imagine the spectator says it is the 5H. This invisible card is apparently placed onto the spectator's hand.
Next a blank faced deck is freely displayed and shuffled before one card is selected. This blank faced card to placed momentarily onto the invisible card, and then when it is turned over, the blank face is now printed with the 5H card face.
video 14:08.