Topic: vocabulary, grammar.
Time: 5 to 10 minutes.
The goal of this game is to find a seat quickly. If you are in the center, to find a seat thereby putting a new person in the center. For elementary students, use fruits or category vocabulary. For intermediate, future/conditional with category vocabulary, or relative clauses. For advanced students, relative clauses or past/present/future grammar.
Put the whole class seated in an exact circle on chairs, with one chair less than the total number of students. If the class is too big for one circle, make two circles. One student begins in the center of each circle, standing, without a chair.
Center student tells each student what word they have; (for elementary students: apple, pear, grape, pineapple, ... apple, pear, grape, pineapple... until everyone has a fruit, including the student in the center). Be sure that everyone remembers who they are. Ask: "All pineapples please raise your hands!", etc.
Center student calls out one type of fruit. Whichever fruit they call, those students must stand up and rush to change seats. Students who move must always take a new seat and the student in the center must also try to get a seat, leaving a new student without a seat and standing in the center. If center student wants everyone to change seats, they call "Fruit Cocktail!"
Important: Keep the game short!