Countinue doing that.
Then put one pile on gop of the other.
Then tell them to pick two pairs.let them pick anything for example 2 red eights.
Then pick a random card and swicth the piles over.
On each end count nine cards put one of the eight on each end
Then start from the top and make two piles until the pile is gone
The pile without two eights goe s away
Countinue putting them in two piles and taking the piles out until you have one card left
Flip over the two cards and see ifthere the same. Have fun. Please follow me.