Pile ou face, also known as "heads or tails," is a simple coin-flipping game of chance where one side of the coin is called "pile" (heads) and the other "face" (tails) in French. Commonly used to make quick decisions or settle disputes, the game requires tossing a coin into the air and letting it land to reveal the winning side. Its simplicity, fairness, and randomness have made it a universal method of decision-making in everyday life, sports, and games.