As far as personality, he is very active, somewhat neat, and a little bit outgoing. But he is very grouchy and serious. Cleve's interests are randomized at the start of the game. It is only referenced in the game files that he has no interests. The game files also reveal that he starts off with no School enrollment or school grade. When Cleve is first spawned in-game, he will be a C student enrolled in public school.