Is it the picture of the hand or the little rectangle with the "Imitate another player's action" text that you can play on?
Also, I notice it is not mentioned in the rules that these tiles are ever flipped during the course of the game. (During our game last night, we were flipping them once each round.) Are you supposed to just set this once, at the beginning of the game, and leave it for the whole game? So that, in some playings of the game, it'll randomly be the first and third columns that can be imitated during the entire course of the game? While in other playings it'll be the first and fourth columns?
Actions in the column with a hand can not be duplicated; the rectangles are the action spaces that can be used to imitate an action. The caption on the picture on pg. 20 is incorrect in my English version, and has been noted in errata lists elsewhere.