Which aspect of preparation is crucial for effective impromptu speaking?

Practicing responding to random prompts is crucial for effective impromptu speaking because it helps to develop quick thinking and adaptability. Impromptu speaking requires the speaker to formulate ideas and structure their thoughts rapidly, often with little to no preparation time. By regularly practicing with random prompts, individuals can become more comfortable with the spontaneity of such situations, allowing them to articulate their ideas clearly and confidently when put on the spot. This practice helps in building a mental repository of ideas and responses that can be readily accessed in various speaking scenarios. It also increases the ability to transition smoothly between different topics, leading to a more coherent and engaging speech.