Cicatriz ESP by Art Vanderlay

Description
The mentalist displays a sealed envelope, inside is a word that the mentalist is concentrating on.

A spectator is chosen at random and brought onto the stage by the mentalist.

They are asked to sit in a chair and the mentalist guides them through a mental thought process to select a word they believe the mentalist is thinking of. This is a free choice and the mentalist does not know what word they have selected.

The spectator then writes this down on a large pad but does not show it to anybody just yet.

The mentalist swaps his envelope with the spectator for the large pad asking the spectator to open the envelope and unfold the paper inside.

Both words match.