Have a card selected, but not looked at. Place the card on
top of the deck, then remove it and show it. Place the card
back on the deck, and turn slightly away from the first
spectator and show the card. Now, as you turn back, push the
card on the top of the deck slightly off (still holding chosen
card in other hand. Now, turn back to the first spectator and
at the same time, place the selected card on top of the deck
removing the jogged card.
Give the card, face down, to the spectator. While doing
this, you can finish any way you wish. A suggestion is to
palm the selected card, have the spectator return the
other card (whish they think is the selected card) and have
the deck shuffled. Then, while grabbing the deck, place the
palmed card on top. If you have good hands, you can replace
the palmed card into the deck face up. Simply fan the deck and
close it casually slipping the chosen card in.
