Why might a speaker choose to present a speech extemporaneously?

A speaker may choose to present a speech extemporaneously to increase a sense of immediacy and originality. This style of delivery allows the speaker to rely on outline notes or key points rather than a fully script, which facilitates a more spontaneous and conversational manner of speaking. This immediacy can help engage the audience more effectively, as the speaker is able to respond to their reactions in real-time, making the presentation feel more dynamic and interactive.

Additionally, this approach also allows the speaker to infuse their personality into the speech, which can enhance authenticity and connection with the audience. By not following a rigid script, the speaker has the freedom to adapt their message on the spot, potentially making their points clearer or more relevant based on audience feedback or environmental cues. This can result in a more memorable and impactful experience for the listeners.