A pratfall is a physical comedy stunt in which a performer stumbles, falls, or trips. It's a technique used to get the audience's attention and to engage them emotionally.

Regarding counting the cards, in the routine described, the magician is using a technique called "card counting." It's a common method in close-up magic where the magician keeps track of the cards during a shuffle and is able to determine the location of a specific card. This allows them to perform the trick by finding the selected card and manipulating it in a way that it appears to have disappeared and reappeared in a different place.
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