Final answer:
Presenters should avoid filler words such as "um" or "okay" as they detract from the fluency of the speech. They should also be mindful of gestures and facial expressions, using them purposefully and in moderation. Maintaining a balance between engaging the audience and staying focused on the content is key.
Step-by-step explanation:
Presenters should avoid filler words such as "um" or "okay". These are common phrases that add nothing to the meaning and can detract from the fluency of the speech. Filler words like "um" and "like" can distract the audience and reduce the presenter's credibility. Practicing the speech and being self-aware can reduce the occurrence of these fillers.
In addition to filler words, presenters should also be mindful of gestures and facial expressions. While these can add emotion and emphasis to the speech, using them purposefully and in moderation is key. Too much or too little can distract the audience from the content of the speech. Practicing in front of a mirror can help presenters control and use facial expressions and gestures effectively.
Overall, presenters should be aware of their physical delivery and maintain a balance between being engaging and staying focused on the content. Eye contact plays a crucial role in establishing engagement and trust with the audience. However, constant eye contact or avoiding eye contact can both send unintended messages. Body positioning, facial expressions, and other nonverbal cues should also be considered in delivering an effective presentation.