What aspects of the speaker’s tone, dress, eye contact, and movement affect your understanding and your appreciation (or lack of it)?

Learning Goal: I’m working on a writing question and need an explanation and answer to help me learn.
Note the strategies that the speaker uses to capture and hold your attention (or not). What signpost language and other guides to listening can you detect? How well are visuals integrated into the presentation? What aspects of the speaker’s tone, dress, eye contact, and movement affect your understanding and your appreciation (or lack of it)? What’s most memorable about the presentation, and why? Finally, write up an analysis of this presentation’s effectiveness.