In the book, M&M has dark, long charcoal-coloredhair and big, gray eyes. M&M has a wide-eyed, intent, trusting" expression most of the time. He always wears an old, oversized Army jacket, and didn't wear shoes for a long time until his father made him start wearing mocassins. He always wears a necklace with a metal peace sign. M&M is a very honest and trusting kid. He doesn't approve of violence or segregation, and he is also pretty serious. that he is absent-minded. Hippie. 13 years old.