"how would I describe myself? Oh what an interesting question! I'll put my extraordinary features into a simple description, since a dimwit like you wouldn't understand if I said it in big boy words" 
Kokichi is a trickster character in the truest sense of the word. He is very mischievous, and he enjoys pranks and teasing others, sometimes in quite mean-spirited ways. He appears to have a strong need for attention, as he gets irritated if people talk over him or don't react to his antics.