Houtarou Oreki has a very passive, calm and seemingly apathetic attitude. Along with his passive demeanor, Oreki seems to always "conserve energy" and never uses energy unless absolutely necessary; thus he comes off as lazy. As another result of his attitude, Oreki talks little and seldomly shouts or gets angry, though he does appear to get irritated often, and Oreki also rarely smiles and never laughed in the series. Oreki is surprisingly wise and clever and as such, he's unbelievably good at solving mysteries and seems to be able to always find a solution if he gives it enough thought. In addition, Oreki has been shown to enjoy reading manga.