Pick work you already understand.
Choose a recurring task where you can recognize a good result: organizing meeting notes, preparing a weekly update, or drafting a routine customer reply.
Start with a draft, then check it.
Use a small approved input. Ask for a specific output. Compare the result with the source, fix the gaps, and keep a person responsible for consequential decisions.
Make the first version repeatable.
Keep the prompt, input format, review checklist, and a record of corrections. Add integrations only when the manual workflow reliably helps.