A social member is defined as a club member born in or before 2005 who only participates at club nights and club runs. This generally does not include competitions offered through their centre or inter-club competitions. Some clubs have 'friendly, non-competitive runs', these are considered to be social for membership purposes.
Volunteers are defined as people that give their time freely to the club but DON'T take part in the club nights and club runs as a participant. For example committee members and supporters.