Using ethos can engage an audience by establishing the credibility and trustworthiness of the speaker. When the audience believes that the speaker is credible and knowledgeable on the topic being discussed, they are more likely to pay attention and be engaged with the message being delivered. Ethos can also help the audience relate to the speaker on a personal level, increasing their investment in the topic and making them more receptive to the speaker's ideas. Overall, using ethos can create a strong connection between the speaker and the audience, leading to a more engaging and impactful presentation.
