Basic · 10 min read · Updated 2026-10-30

How to ask AI well – the basics of prompting

An AI's answer is only as good as the question. The good news: writing a good question is a skill you can learn in an evening. This guide shows you how.

What does "prompting" mean?

The text you type to an AI is called a prompt. Prompting simply means how you ask an AI for things. You don't need special commands or code. You just need to explain clearly what you want, as you would to a new colleague.

Think of it this way: if you ask a neighbour to "get something from the shop", they won't know what to bring. If you say "could you pick up a litre of skimmed milk and a rye loaf, the round kind", you'll get exactly what you wanted. AI works the same way. It can't read your mind, but it does a surprisingly good job once it knows what you're after.

Four parts that make a good question

A good prompt can be built from four parts. You won't need all of them every time, but the more you include, the better the answer tends to be.

  1. Role – who is the AI? "Act as an experienced bookkeeper", "You are a patient computer teacher" or "You are an adviser who knows marketing". The role steers its vocabulary and point of view.
  2. Context – what is the situation? Say who you are and what this is about. "I'm 62 and moving from a house to a flat." Context is the most important part, and it's exactly what most questions leave out.
  3. Task – what do you want? Use a clear action word: write, explain, compare, summarise, suggest, check, list.
  4. Format – what should the answer look like? "Answer in five bullet points", "no more than 100 words", "as a table", "in plain English" or "polite but firm".
Tip: Remember RCTF: role, context, task, format. If you only remember one, make it context. It improves the answer more than anything else.

Before and after: three examples

Example 1: An email

Before: "Write an email to the builder."

After: "Write a polite but firm email to a builder. He promised to start renovating my bathroom on Monday but hasn't turned up and isn't answering his phone. I want a new start date by Friday, otherwise I'll find someone else. No more than 120 words."

The first version produces a generic, empty message. The second produces an email you could send almost as it is.

Example 2: An explanation

Before: "What is a tax deduction for home repairs?"

After: "Act as a clear, friendly adviser. I'm retired and about to have a new roof put on my holiday cottage. Explain in plain English whether there are typically tax deductions for this kind of work and what I should check before hiring someone. Finish by reminding me where I can check the current rules."

Notice the last sentence: you ask the AI itself to tell you where to verify the information. Tax amounts and rules change, so always check them with your tax authority.

Example 3: A post for a small business

Before: "Make a Facebook post."

After: "You run social media for a small café in an old town centre. Most customers are retired locals and tourists. Write a Facebook post announcing that from November we'll have cinnamon bun day every Thursday. Warm tone, not too many exclamation marks, no more than 60 words. Give me three options."

Asking for several options lets you pick the best one or mix and match.

Follow-up questions: the most important skill nobody talks about

Many people give up if the first answer misses the mark. That's a shame, because an AI's biggest strength is the conversation. The first answer is a draft, not the end result. You can rework it as long as you like. Good follow-ups include:

  • "Cut it down by half."
  • "Make the tone warmer / more formal / more relaxed."
  • "Rewrite it so my 80-year-old mother would understand it."
  • "What did you leave out? What are the risks here?"
  • "Explain your reasoning and tell me where I can check this."
  • "That's not what I was after. I meant…"

You can also turn things round: ask the AI to question you. Add to the end of your prompt: "Ask me clarifying questions first if you need more information." The AI will interview you and can then help much better.

A ready-made template to reuse

Copy this template into the notes app on your phone. Fill in the parts in square brackets and paste it into the AI:

Act as [role, e.g. an experienced customer service agent]. Context: [who you are and what the situation is, 2–3 sentences]. Task: [what you want, e.g. write a reply to a customer complaint]. Format: [length, tone and structure, e.g. no more than 150 words, friendly tone, end with a clear next step]. If you need more information, first ask me up to three clarifying questions.

Once you've used the template a few times you won't need it any more – you'll start writing like this naturally.

The most common mistakes

  • Too short a question. "Recipe" gets you anything. "Quick weeknight dinner for two with minced beef, no cream" gets you something useful.
  • Too many things at once. Ask for a travel plan, budget and packing list in one message and the answer will be shallow. Ask for one thing at a time.
  • Assuming the AI knows your situation. It doesn't know where you live, what your business does or what you meant in another chat yesterday – unless a memory feature is switched on.
  • Trusting the first answer. Always check facts, especially figures, dates and legal points. See what AI can't do.
Careful: Even a great prompt is no reason to share sensitive information. When you give context, leave out ID numbers, account numbers, customers' names and health details. Write "customer A" or "a family member" instead. More in security and privacy.

Summary

A good question gives a role, context, a task and a format. Context matters most: describe your situation as you would to a new colleague. Don't settle for the first answer – keep the conversation going and ask for changes. Keep a template handy and you'll get far more out of AI, saving time every time.

Frequently asked questions

What is a prompt?

A prompt is the text you type to an AI. It can be a question, a request or an instruction. You don't need special commands; everyday language is enough.

How long should my question be?

Long enough for the AI to understand your situation. Three to five sentences is often plenty: who you are, what you want and what kind of answer you'd like.

Do I need to be polite to AI?

You don't have to, but clarity helps more than politeness. Being polite does no harm, and many people write more naturally when they talk to AI as they would to a person.

What do I do if the answer is poor?

Say what was wrong with it and ask for a new version. You can also add more background or ask the AI to put clarifying questions to you.

Tools in this guide

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