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lecturer tells and shows presentation on the scene to packed house of listeners - close up
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Professional Business Seminar: African American Businessman's Presentation
View from behind the podium at an awards gala speech talking public speaking
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A man with a microphone refers to the audience. Male person with microphone indicating with index finger forward. Public speaking concept.
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Upbeat presenters speak at AI forum gathering tech startups managers, investors and academics. IT specialists moderating discussion panels
View from behind the podium at an awards gala speech talking public speaking
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Upbeat presenters speak at AI forum gathering tech startups managers, investors and academics. IT specialists moderating discussion panels