Public speaking is a form of art that seeks to engage the audience throughout speech. In order to draw them to the speaker, s/he should be artful in vocal and visual communication. That includes his body, gestures, facial expression and voice that keeps pace with the idea being expressed craftily, clearly, and efficiently. The well prepared speech should meet three artistic standards: thematic unity, expressiveness, and situational fit.
What is so important about any speech is the clear-cut thesis that communicates the main idea of the presentation. Three different methods of logic can be employed to gain thematic unity in the speech. Firstly, state thesis clearly. Simple logic followed by one or more logical supportive subpoints can be used in as a rhetoric device to tie the audience to the speech. By doing so, audience can understand the thesis clearly and stick to it. Clear understanding of a speech generates pleasure in audience. Secondly, dialectic logic is a persuasive device that shows why pros are more convincing than cons. It can be understood as thesis-antithesis. This method of logic requires the speaker to address opposing viewpoints. Finally, problem-solution logic also can gain thematic unity by offering reasonable solution to the problem that audience most likely face.
Expressiveness is another factor of an artfully unified speech. Both verbal and nonverbal expression is very important in the speech along with using metaphors. Speaker can also use acronyms-based subpoints or bullet points for memorization of points so that s/he can make sleek transition from one stage to other. In verbal expression, rise and fall in tone and pace of vocal is also important during delivering speech. Begin speech in slow pace and conclude in fast variations make speech more interesting. Stress particular points or words in loud shows emphasis of the point. Avoid verbal fillers but be silent if such is the case that you forgot the point you are going to make. This brief pause in speech also gives audience time to process on what has been said.
Furthermore, the speaker also should be concerned about situation fit. He should be aware of whom he is going to address at and what the event is about. Knowing the need and interest of audience, event and addressing them in the given time-frame is also the most important aspect of speech. Too much saying errs more and turns disorganized speech while saying too little also gives impression of unimportance. More than that, all the speech should have at least two illustrious stories to engage the audience.
A servant speaker can be intelligent and persuasive but it takes integrity to be a successful speaker. He should speak in truth. There are four aspects of truthful speech: (a) God-talk, (b) doubt-talk, (c) honest-talk, and (d) straight-talk. When the servant speaker is talking about God-talk, he should clarify the words he uses in his speech. There are certain places or events where God-talk is not appropriate or, to say, not allowed, one should use metaphors for religious words. The servant speaker should always the sources while quoting. If there is doubt on resources he uses, should it be clear to audience that he also doubts and he could be mistaken for what he quotes. Honest-talk is avoiding intentional deceptions such as plagiarism, fabrication of the story, or trying to justify ones deception. Honest-talk solidifies relationship between audience and the servant speaker. Straight-talk is communicating ideas in a plain and clear language. It draws audience.
Moreover, the servant speaker be not only effective in his communication but also should be virtuous that bears the fruit of the Spirit. His inner character is foundational. Thus, he should possess the fruit of the Spirit like joy, peace, patient, kindness, goodness, gentleness, faithfulness, and self-control.