If you have read the book Matched by Ally Condie:

What are one/two character traits to describe Cassia with supporting evidence

Cassia Maria Reyes

The story's main protagonist and narrator, Cassia is seventeen years old, with green eyes and "coppery" brown hair. She is a student at Second School, but also works as a data sorter. She is very physically active, often running on her tracker, and choosing hiking as a summer leisure activity.

Brave: She goes against everything she has been taught to believe her whole life to do what she thinks is right.

Clever: She works against the government (forgot what they called it in the book) but still manages to stay living her life and working her way up to find out information.