One of the reasons they are different is that they have very different work habits. Mitty is a lazy worker who always waits til the last minute to finish a project. Olivia is a hard worker who studies a lot and finishes her projects early. They are also different in the way they look. Mitty is always messy but still handsome, he is brown haired. Olivia is always neat and is very pretty, she has blond hair. The final reason that they are different is their personalities.