Mon Son Pha (มอญซ่อนผ้า), which translates directly to "Mon Hiding the Cloth," is a classic, beloved Thai children's game that embodies simple joy, anticipation, and quick-witted fun. While commonly played across Thailand, the game's name acknowledges its purported roots in the cultural practices of the Mon people, who have a long history and presence in the region.The game is characterized by its simple setup and high suspense. A group of players sits in a circle, facing inwards, usually singing a traditional, rhythmic song associated with the game. This circular arrangement means that every player's back is exposed.The action centers on the "hider," who is designated to secretly carry a piece of folded cloth, often a handkerchief or a scarf (pha), as they walk silently around the outside of the sitting circle. The hider must walk subtly, attempting to conceal the cloth from the seated players, whose primary task is to be completely still and focused on the song, all the while attempting to sense if the cloth has been dropped behind them.The moment the hider drops the cloth behind one of the seated players, they immediately tap the player on the shoulder and begin to run. If the seated player realizes the cloth is behind them, they must quickly pick it up and chase the hider, attempting to tag them before the hider can complete a full circuit and sit down in the vacant spot. If the hider is tagged, they become the hider again. If the seated player fails to notice the cloth, or is too slow to catch the runner, they become the new hider for the next round.Mon Son Pha is a timeless example of Thai folk games that require no equipment beyond a simple piece of cloth. It encourages focus, promotes good sportsmanship, and provides an outlet for bursts of energetic excitement, making it a universal favorite at schools, community gatherings, and children's parties.