Final answer:
Ethos is built by showcasing one's authority through credentials, experience, and a history of reliable information. Advanced degrees, professional experience, and recognized contributions to a field enhance credibility. Ethos convinces an audience of the speaker's trustworthiness and ethical stance.
Step-by-step explanation:
To build ethos, one might highlight one's credentials, professional background, and one's track record of providing accurate, trustworthy information or opinions. Credentials or experience that add to a person's credibility could include advanced degrees, relevant job titles, years of experience in a field, a history of reliable testimony, a lack of bias, or direct involvement in relevant community activities.
In the context of an argument or presentation, using ethical appeal appropriately ensures that the audience perceives the speaker or author as a credible and ethical authority on the subject at hand. For instance, if an individual is discussing environmental policies and they hold a degree in environmental science, have worked in sustainability initiatives, and have been recognized for their contributions to the field, these aspects contribute significantly to their ethos.
By presenting sources in a balanced and honest manner, understanding the audience, and possibly invoking respected authorities or texts, the speaker establishes a persuasive ethical appeal.