Lenzo's Research Assistant

The Lenzo's Research Assistant is a sidequest in The Wind Waker, and the precursor to the Nintendo Gallery sidequest (also found in this game). It starts in Windfall Island: When Link finds Lenzo in his house for the first time, he doesn't show any trusts on him, since his Picto Box was stolen by Tingle; but when Link retrieves it (although having to free the aforementioned thief in the process), Lenzo not only thanks him, but also lets him keep the camera and, additionally, shows him his repertoire of pictographs. In a later encounter, Lenzo instructs Link to complete certain objectives. This sidequest ultimately leads to the Deluxe Pictobox, but it's a long procedure.

Exercise One – A love letter
The first task revolves around a guy who sends love letters to an unknown person, only to find that none of his feelings are reciprocated. Link stakes out the Mail Box, remains out of sight and waits for Garrickson, the man in red coveralls, to deliver his love letter. He then takes the pictograph and brings it to Lenzo for the next challenge.

Exercise Two – The Face of Fear
The second task revolves about a man who fails to face his own fears. Link scares Gossack, the man sitting at the table at the Cafe Bar who is afraid of earthquakes, by hitting a wall with a rolling attack, and snaps a picture while the man is tembling. He then brings it to Lenzo for the next challenge.

Exercise Three – The Secret Couple
The third and final task revolves about a gentleman and a lady: Both are in love with each other, yet one is unaware that the other is having the same feeling. Link waits for Anton, the man strolling through town, to look at and pass Linda, the orange-dressed woman near the school, to chat. He snaps a picture showing them together and brings the picture to Lenzo. The reward is 20 rupees ... at first.

Aftermath
In a later encounter, Lenzo's last task for Link is to bring a Firefly from Forest Haven. The reward for all of this trouble will be a Deluxe Pictobox, capable of taking Color Pictures thusly unlocking the Color Pictography Quests and the Nintendo Gallery sidequests. Not only that: After Link clears the Forsaken Fortress, he can purchase Legendary Pictographs from Lenzo, so that they can be turned into figurines, as part of the Gallery completion.