Life How to play MASH? A step-by-step guide for playing the fortune-telling game May 2, 2023Olivia Munson, USA TODAYComments Off on How to play MASH? A step-by-step guide for playing the fortune-telling game MASH is an old paper-and-pen children's game predicting someone's future. Start by writing MASH on a paper and choose your categories.