The mode of delivery recommend would be extemporaneous presentation.
What is extemporaneous presentation ?
An extemporaneous speech, is actually a well-prepared speech that relies on research, a distinct structure, and honed delivery. It is never delivered in exactly the same way because it is neither read aloud nor memorized. The majority of impromptu speakers use notes of some kind, whether they be on index cards or a PowerPoint presentation.
Extemporaneous speaking is the presentation of a carefully planned and rehearsed speech, spoken in a conversational manner using brief notes.
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