participant shuffles the deck.
Then cut a pile and count them without telling you .
second participant chooses any card (completely free choice)
Then Tell the participant to put the pile back on top the deck then give the deck a complete cut.
Magician shows the audience that the cards are completely shuffled
Participant loses his card anywhere in the deck
and dealing the cards one by one till the end. The last two cards totals the equal the number in the pile
Finally collect the cards and deal the number to find the second participant card