This document discusses rhetorical strategies for establishing credibility or ethos when giving a speech. It covers Aristotle's concept of ethos and its importance in rhetoric. It also discusses other theorists' perspectives on ethos like Cicero, Theofrast, Quintilian, and McCroskey. The document emphasizes that ethos is determined by the audience and involves both direct appeals about the speaker and indirect appeals through logical arguments and emotional language. It provides advice on analyzing the audience and context to effectively shape one's derived and terminal ethos.