E. These are bluffing), they're able to call their bluff by saying “Bluff!”. If that participant was in fact bluffing, they have to get all of the playing cards on the desk as a penalty. When they weren't bluffing, the player who known as the bluff must take the penalty https://deanatiwe.blogoxo.com/39514418/about-what-are-the-rules-for-deceiving-opponents-in-bluffing-games