Draw up a grid with 10 squares on it. In each square put a question that the individual has to find someone to sign, e.g. find someone who went to the cinema in the last seven days. When people have completed the grid they should sit down or stand on a chair. People may sign their own card for one category only and must collect 10 different signatures. The person who collects the most amount of signatures or completes their bingo card first wins the challenge.