Answer:
Impromptu
Explanation:
An Impromptu speech is a talk that you give on the spot with no preparation. The speech could be as professional as a project update or as casual as a toast at a wedding. Either way, you are expected to say something smart, witty and charming. By endeavor impromptu, it made my skill to improve more and more. By this kind of speech made me realize that this is more important than the other speech because improvisatory makes the person witty.
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