Which factor is least likely to increase audience engagement during a speech?

Using complex technical jargon is least likely to increase audience engagement during a speech because it can create barriers to understanding. When a speaker uses specialized language or terminology that the audience may not be familiar with, it can lead to confusion and disengagement. Effective communication relies on clarity and relatability, and when the audience struggles to grasp the content due to complex wording, their interest and connection to the message are diminished.

In contrast, incorporating personal stories tends to foster emotional connections, as audiences can relate to personal experiences. Asking open-ended questions encourages interaction and keeps the audience actively involved in the discussion. Utilizing visual aids effectively helps clarify the message and can enhance retention, making the information more accessible and engaging. These approaches invite participation and facilitate better understanding, whereas the use of complex jargon alienates the audience.