Really? If I am sat with a pilot who has a current SEP rating in accordance with JAR FCL and I am sat with them for the purposes of meeting club/syndicate rules and providing no input to the flight how can I be providing instruction?
The purpose of the flight is to ensure that the person is safe to command for club 'insurance' purposes not to give any instruction.
Personally as an Instructor I log nothing and allow the pilot to be clearly in command of the flight.
I await responses from the floor.......