Passengers who come along for the ride during a training flight at White Waltham (West London Aero Club) must be members of the club for insurance purposes and day membership is available.
So far I've taken my wife along for two flights (including my first land away) and a friend on a nav. exercise flight. Very good experience as naturally I'm then expected to brief the pax. on emergency procedures, check they have their seatbelts done up correctly and that of course they are enjoying the flight.
--Mik