Gestures whether voluntary or involuntary can be used to support a message or call attention to specific points in a delivery. Generally those gestures that appear natural and relaxed are more likely to send a message of self-confidence and less likely to detract from the speaker's message than those that are extreme. The authors suggests that rubbing or clenching hands may signify tension or anxiety and should be avoided during a presentation.

Visual aids are another form of nonverbal communication that can be used to enhance a message, express an additional sentiment or clarify a confusing message. Visual aids when designed tastefully and meaningfully can greatly enhance a presentation. It is also important to note however that visual aids can also detract from a presentation if they are utilized too often or are not used in a manner that adds to the presentation or amplifies the message the speaker is...
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