Mismag822 shows you how to perform the "best little self working" card trick. Get your mini deck of cards and count out 16 cards. Shuffle the cards out and lay them out in a grid. Select 4 cards over the deck. Then the other person selects a row and fold it over like a book. Keep folding till you have one deck. Spread out the cards 4 should be face down. The four cards that are left should be all aces.