Present a sale of your product, without processing any payments.
Use people instead of just tech to deliver value manually. A staged experience hidden from sight to the customer.
Email messages sent to customers over a specific time period.
Use online adverts to display your value proposition to a niche user segment, plus a simple call to action, over a specific time period.
Simple web page clearly illustrating your value proposition with a clear call to action.
To rapidly test the concept of your idea/service quickly consider a clickable prototype.
Creating successful customer or user interviews is a critical skill.