Basically the person before you asks a This or That question, i.e. whether you prefer one thing or another. The second person answers the This or That question and leaves another question, e.g. Chocolate or Caramel, Football or Rugby etc. The third person then repeats, 4th and so on. Check back to see what has been answered to your question.
1. Try to post a new This or That question, i.e. one that han't already been asked
2. Do not answer with "Both"!
3. Keep them clean but have fun