Start with warm trust
The first orders usually come from people who already have some reason to trust you: existing customers, friends of customers, social followers, local community members or repeat buyers from offline channels.
Do not treat this as a weakness. Early trust creates feedback, testimonials and proof for colder traffic later.
Make sharing specific
A vague “check out my website” post rarely performs. Share one product, one reason it exists and one clear action. Specific posts are easier to forward.
Ask early supporters to share the exact product page, not only the homepage.
Use the first orders as research
After each early order, learn what convinced the customer, what almost stopped them and which page they visited first. This information improves copy faster than guessing.