No special preparation is required. One way to do this is to turn them into super shoppers. Ask participants to brainstorm ways they can become more knowledgeable about the food they eat. Write these ideas on a flip chart or chalkboard. Explain that media, university, corporate, and other sources often quote surveys to introduce or back up claims.
Surveys can provide keen insight into how people perceive things.
In other words, surveys are sometimes used to support an organization's agenda. Divide participants into teams of two to four. Give participants several minutes to read and discuss the quotes. After they have finished, review their answers and opinions. Also, the person quoting the survey was a competitor, and clearly had an agenda.