In The Adventures of Huckleberry Finn, Tom and Huck are characterized very differently. How is Huck characterized

When determining who should narrate the novel, Twain first considered the popular character, Tom Sawyer. Tom, after all, had garnered an enormous following from his own tale, The Adventures of Tom Sawyer. But Twain felt that Tom's romantic personality would not be right for the novel, and so he chose Tom's counterpart, Huckleberry Finn. Huck is the most important figure in Huck Finn. It is his literal, pragmatic approach to his surroundings and his inner struggle with his conscience that make him one of the most important and recognizable figures in American literature.

Honestly, just look at cliffsnotes.