two other fun ones for kids and drunks,
isolate the 7 clubs and 9 spades pair one , the 9 clubs and 7 spades pair 2 ,what you do next is up to you if you can suffle the middle of the deck without moving the top and bottom that is good if you can split the deck moving the bottom card to the split that is fun , but the point is to give pair one to the victim while having pair two split as top and bottom card , the easiest way is to for illustration have 7 clubs bottom then 9 spades 9clubs 7 spades at the top and casually deal the top two to the victim face down . The trick get them to look at the cards keep patter going and get them to insert cards in deck , now hold the deck in between thumb and finger tips with a bit of pressure and snap flick your wrist so all the cards bar top and bottom fall away , are these your cards sir? clearly not but 99% think they are.
the 4 robbers is a nice kids story, a deck of cards is a bank , in your hand shown to the mug are 4 jacks in a vertical fan (ie one above the other overlapping long edges all aligned )concealed behind that are 4 other cards , squeeve the fan to produce a mini deck the helicopter ,the helicopter lands on the bank and the robbers enter the bank, take the 4 backing cards and push them randomly into the deck one at a time not showing the face ,the police arrive make police noise and knock on the deck for drama the robbers panic and jump from the roof turn the top 4 cards over one at a time revealing the jacks ,