@Xamdiz Being the goofer, I'd bet, like taking the notes for the detective when investigating and preparing supplies. If you think of him as an extra hand for the detective to perform the simple task a detective would be doing, what do you imagine him doing with his skill and personality?
@Cryotic Things like in a detective manga, maybe from simple cases like in "Mattaku Saikin no Tantei to Kitara" where they just go follow people who were accused of cheating. There would be a similarity between what he's doing and the journalist club's activity. There might also be more serious cases where he witnessed or do something interesting.