One person at the table is the “leader.” The leader says either “Cat” or “Cow.” When the leader says “Cat,” the others meow. When the leader says “Cow,” the others moo. Keep saying “Cat” and “Cow,” faster and faster, switching back and forth and making the pattern more and more random until somebody “moos” when they should have “meowed” or “meows” when they should have “mooed!”