A captive audience is a person or a group of people who have
gathered in a certain place for a purpose and are provided or
exposed to information that are unrelated to their actual purpose
of being there. For example, students may gather in a classroom to
study physics but may be "bombarded" with soft drink advertising or
promotion. People queuing up at a petrol station or at a
supermarket check-out are considered a "captive audience." They are
likely to stay there for a certain time and are thus "captives" for
a while. Other examples may include people in a departure lounge in
airports and sports stadia. Advertising for such "captive audience"
is likely to be effective because there is a high probability of
the advertising being read or listened or seen.