L is quite secretive, and only communicates with the world through his assistant, Watari. He never shows his face to the world in person. L is very intelligent, though his disheveled and languid appearance masks his great powers of deduction and many question his abilities upon viewing him. L tends to second-guess everything he is presented with, and is extremely meticulous and analytical. He also has several quirks, such as preferring to crouch rather than sit, eating only sweet foods.