"Heads or tails" is a simple game often used to make decisions or settle disputes. It involves flipping a coin, which has two sides: one side is called heads, typically featuring a portrait or emblem, while the other side is called tails, often displaying a different design. Players call out their choice before the coin is flipped, and the outcome determines the winner. This game is popular because it is quick and requires no special equipment beyond a coin. It is commonly used in various situations, such as deciding who goes first in a game or resolving a disagreement between two people.