This is how it Will look like (part 1/4)
First you need to shuffle the cards. And here's the first secret..
When you lay it down to "tap it" (you see in the video) you can see the bottom card. Remember that card
Here is from My view. And in this case you can see the bottom card is 9♠. Remember it. Now you can let your friend take a card (they will not take the bottom)
The card you see first is the card who will represent my friends card (I'm doing this alone now) and he or she will keep the card. Lay your cards in random piles.
Like this. It doesnt matter how many cards you lay in Every pile. Just remember to lay the last pile straight down. It's because your bottom card is facing the table now. You see how I do at the end.
Let your friend lay his card on top of one of the piles. They usually don't lay it on the last pile (where your card is) but if they do it, The card trick is ended :/ I have no idea have to fix that.
Start to collect the piles and lay it on top of each other. Remember that the penultimate pile should be the pile that he lay down his card. And last your pile, where your card is on the bottom
You see? I showed you "My friends" card first and Then I layed "My pile" over it. That makes My card is over My friends.
Put it in piles again But facing up. Now search for "the bottom card". And when you See it start with a new pile and the first card Will be your fiends card
Did you see? Now we know that the friends card is 9♣ and then just lay it in random piles
Collect them and take the 9♣ pile last.
Put some card on the table and see if 9♣ (or your friends card) and Then pretend to read your friends mind that you Will find his card
If something is unclear just write in the comments and i help you :)