The document discusses how writers use tone, style, word choice, figurative language, and other language techniques to indirectly express their purpose and communicate attitudes without expressly stating them. It provides examples of how writers establish tone through word choices and sentence structures, tailor their style to the intended audience, use connotative and denotative word meanings, make comparisons through similes and metaphors, and employ symbols to represent ideas. Understanding these indirect language aspects is important for discerning an author's full message and purpose.