Fans are people, one or more of them in a group, who encourage an individual, a couple or a group of people in the performance of a certain psycho-physical activity, with the help of certain means or without them, for the purpose of both their own satisfaction and the satisfaction of the one they are cheering for!

Fans who share the same fan objects often organize themselves into fan groups and fan clubs (a fan clubs), all for the purpose of cheering.