How to Use ChatGPT: A Practical Beginner's Guide for Work

ChatGPT is OpenAI's AI assistant. You type (or speak) a request in plain English and it writes, summarises, explains, analyses data, drafts emails and much more. This guide covers what you need to get genuinely useful work out of it, not just a clever demo.

Getting started in five minutes

1. Open chatgpt.com in your browser, or install the official ChatGPT app for Windows, Mac, iPhone or Android.
2. Sign up with an email address or an existing Google, Microsoft or Apple account.
3. Type a request in the message box at the bottom and press Enter.
4. Keep the conversation going. ChatGPT remembers what has been said earlier in the same chat, so you can say "make it shorter" or "now turn that into a table" without repeating yourself.
5. Start a new chat (top left) when you switch to an unrelated task. Mixing topics in one long chat makes answers worse.

There is a free plan and several paid plans. Paid plans mainly give you higher usage limits, access to the most capable models and extra features. Check the official pricing page for current plans, because they change often.

The anatomy of a good request

Most disappointing ChatGPT answers come from requests that are too short. "Write a job advert" gets you something generic. Compare it with this:

Write a job advert for a heating engineer at a 12-person
boiler installation company in Cardiff.
Audience: experienced Gas Safe engineers who are tired of
agency work.
Include: van and tools provided, £38k to £44k, 4-day week option.
Tone: straightforward, no corporate buzzwords.
Format: headline, 3 short paragraphs, then a bullet list of
requirements. Under 250 words.

That request includes four things that make a big difference:

• Context: who you are and the situation.
• The task: exactly what you want produced.
• Constraints: what to include, what to avoid, length and tone.
• Format: how the answer should be laid out.

Our prompt writing guide goes deeper, with templates you can copy.

Ten things ChatGPT is genuinely good at in a business

Upload files instead of describing them

You can attach documents, PDFs, spreadsheets and images using the paperclip or + button. This is one of the most useful habits to build:

• ChatGPT works from the real content rather than your summary of it.
• It can quote the relevant clause or cell, so you can check its answer.
• For spreadsheets, it can run calculations and produce charts.

Remove personal or confidential information first unless you are on a plan and settings your business has approved. See is it safe to use ChatGPT with company data.

Use Projects for ongoing work

Projects keep related chats, files and instructions together. For example, a "Tender responses" project could hold your company profile, case studies and a standard instruction like "always write in UK English and refer to us as Calon AI". Every new chat in that project starts with that context.

Use a project when you return to the same kind of task repeatedly. Use a normal chat for one-off questions.

Set custom instructions and understand memory

Custom instructions (in Settings, under Personalization) let you tell ChatGPT things that apply to every chat, such as your role, your industry and how you like answers formatted. A short example: "I run a 15-person electrical contractor in Wales. Use UK spelling. Keep answers concise and practical."

Memory lets ChatGPT remember useful details across conversations. You can view, edit or delete memories, or turn the feature off entirely, in Settings. If you share a device or handle sensitive work, review what it has stored.

Voice, images and web search

• Voice: tap the microphone or voice icon to talk instead of typing. Useful when driving between jobs (hands-free, of course) or thinking out loud.
• Images: ask it to create an image, or upload a photo and ask questions about it, such as "What is this error on the boiler display?"
• Web search: ask for current information and ChatGPT can search the web and cite its sources. Click the citations to check them.

Custom GPTs

A custom GPT is a version of ChatGPT set up for one job, with its own instructions and reference files. For example, a "Quote checker" GPT that knows your price list and flags anything outside your margins. You can keep it private or share it with your team. Projects suit your own ongoing work; custom GPTs suit a repeatable tool other people will use.

Common mistakes to avoid

1. Trusting facts without checking. AI assistants can produce confident but wrong answers. Verify figures, names, dates, laws and quotes.
2. One endless chat. Long conversations get slower and less accurate. Start fresh for new tasks.
3. Vague requests. Add context, constraints and a format.
4. Pasting sensitive data into a personal account. Agree a policy first.
5. Accepting the first draft. Ask for alternatives, a shorter version or a different tone. Iteration is where the quality comes from.

If something goes wrong

Errors such as "Something went wrong" or "A network error occurred" usually have simple fixes. Our step-by-step ChatGPT troubleshooting guide covers them in order.

From personal tool to business system

ChatGPT on its own is a personal productivity tool: one person, one chat, copy and paste in and out. The bigger gains come when AI is connected to the systems your business already runs on, such as your CRM, job management software, inbox and accounts, so the work happens automatically. That is what Calon AI builds. If you are curious what that looks like, read about The AI Brain, which puts one chat across your CRM, Xero, inbox and more.