One message, one draft
Take a customer message you need to answer. Give the assistant the relevant context and ask for a first version, without inventing details that are missing.
Something worth sharing
Describe a finished project or a new service. Ask for a short post that sounds like your business, then make it your own.
A page, a review, a document
Update an outdated service description. Prepare a reply to a customer review. Ask a document a specific question and check the source passage. Three more ways to start, using the same business context.
Evaluate the useful part
Do not judge only the first sentence. Look at the effort needed to brief, correct and validate. A useful workflow should fit your day, not become another system you have to manage.