Impromptu Speaking: How To Speak About Any Topic

Imagine you're sitting in a meeting and someone suddenly asks for your opinion. You haven't prepared anything, but everyone turns towards you, waiting for an answer.

You know you have something to say, but you're struggling to find the words. Your thoughts are moving faster than your mouth and before you've worked out how to respond, you've already started speaking.

This is where impromptu speaking comes in.

Impromptu speaking is the ability to communicate without preparing your words beforehand. It's a skill we use every day, from answering unexpected questions to contributing to meetings and having spontaneous conversations.

Why Is Impromptu Speaking So Difficult?

When we speak spontaneously, our brain has to generate the ideas first, then select the relevant information, organise our sentences and communicate them almost simultaneously.

Unlike a prepared presentation, you don't have the opportunity to rehearse what you're going to say.

For some people, the challenge isn't a lack of ideas. For others, it's having too many ideas and not knowing which one to share first.

And for other people they become so focused on finding the perfect words that they hesitate or lose their train of thought. Understanding why your mind goes blank when speaking can help you recognise what happens under pressure.

The goal of impromptu speaking isn't to think faster. It's to become better at selecting, organising and expressing your thoughts.

How To Speak About A Topic You Know Nothing About

Let's imagine someone asks you to speak for one minute about gardening, but you know very little about plants.

You might immediately think, "I don't know anything about gardening. What am I supposed to say?"

Instead of focusing on what you don't know, think about what you can connect to the subject.

Perhaps you've seen someone growing vegetables, visited a garden or noticed how plants change throughout the seasons.

You could start with:

"I've never been particularly good at gardening, but I've always found it interesting how people know so much about gardening, it seems as though you have to be really patient, knowing when to sow the seeds and when to pick the fruit."

You've now introduced the topic through something you understand, from your own perspective. Anything that you’ve seen, stories you’ve heard is something that you can say in the conversation.

This is one way to practise speaking on the spot without relying on a memorised script.

Use Word Association To Generate Ideas

One technique that Emily, a Voice and Communications Coach from Speaking Voices, uses to develop spontaneous speaking is word association.

Word association involves taking one word and connecting it to another idea that comes to mind.

For example:

Coffee → Morning → Routine → Exercise → Health → Sleep

Each word creates another possible direction for your thoughts.

You might start talking about coffee, move into morning routines and eventually discuss the importance of sleep.

The purpose isn't to jump randomly between subjects when speaking to an audience. It's to train your mind to recognise connections and generate ideas when you don't have a prepared script.

Once you've generated several ideas, choose the ones that are relevant to your message. You can dive deeper into that one chosen topic by asking questions about that topic using the 6 W’s, what, where, when, who, which and why.

• What type of coffee do you like drinking?
• Where are the best coffee shops you’ve been to?
• When do you drink the most coffees throughout the day?
• Who makes the best coffee?
• Which coffee brand do you normally buy?
• Why do you like drinking coffee so much?

How The One-Minute Word Association Game Works

This is a practical impromptu speaking exercise you can do at home.

Step 1: Choose a random word.

It could be something simple, such as a chair, holiday, technology or happiness.

Step 2: Set a timer for one minute.

Your challenge is to speak continuously about that word and the ideas associated with it.

Step 3: Follow the connections.

For example, if your word is "chair", you might say:

"When I think about chairs, I think about comfort. We spend so much time sitting, particularly when we're working at a desk. That makes me think about posture and how our bodies feel after sitting for several hours."

You've moved from chairs to comfort, working habits and posture.

Step 4: Keep speaking.

If you run out of ideas, keep speaking out loud “I don’t know what to say next, but I will keep speaking until the timer runs out” and by allowing yourself to repeat this sentence, the ideas will come to you.

Step 5: Reflect on your speaking.

Ask yourself whether your ideas flowed naturally, where you hesitated and whether your listener could follow your thoughts.

Practise with a different word each day.

How To Organise Your Thoughts While Improvising

Word association helps generate ideas, but good communication also requires structure.

Otherwise, you might spend two minutes discussing five different subjects without making a clear point.

Try this simple approach:

1. Introduce the topic. Explain what the subject means to you.
2. Explore one idea. Share an observation, example or personal experience.
3. Bring it together. Finish with a conclusion that connects to your opening.

For example, if you're asked to speak about travelling, you could introduce why people travel, share an experience from a holiday and conclude with what you like about travelling.

You don't need ten different points. One well-developed idea can be more engaging than several disconnected thoughts. You can also explore how to be a great storyteller to make your spontaneous responses more interesting.

How To Improve Your Impromptu Speaking Skills

Start by practising for one minute each day using random words. As you become more comfortable, challenge yourself with unfamiliar subjects or AI to choose topics for you. You can also practise speaking up in everyday conversations by contributing one spontaneous idea without rehearsing it beforehand.

If you'd like to speak more spontaneously, organise your thoughts and have a continous flow of words when you’re in conversation, you can learn how to improve your impromptu speaking in our 1:1 speaking confidence programme at Speaking Voices.

Frequently Asked Questions

What Is An Example Of Impromptu Speaking?

Impromptu speaking happens when you communicate without preparing your words beforehand. Examples include answering an unexpected question during a meeting, sharing your opinion in a group discussion or being asked to give a short speech without notice. It requires you to generate ideas, organise your thoughts and communicate them clearly in the moment.

How Can I Practise Impromptu Speaking At Home?

Try the one-minute word association game. Choose a random word, set a timer for 60 seconds and speak about the subject and any related ideas that come to mind. You can also record yourself answering random questions or explaining unfamiliar topics. Practising regularly helps you become more comfortable speaking without a script.

How Do You Speak Confidently Without Preparation?

Start by identifying one idea you can confidently discuss. Introduce your point, explain it using an example or personal experience and finish with a short conclusion. Avoid trying to cover too many ideas at once. Speaking confidently without preparation is about communicating your thoughts clearly, not delivering a perfect speech.