Once you have an MAP prototype, you can start by showing it to users. The key thing about if you're doing this tactic is to not tell them what to do. Keep these interviews involved throughout the process. One common idea that a lot of Wasting companies are using is to create a Slack instance or a WhatsApp group with their customers. You want to make them feel like they have exclusive active access to the future world changing product.
YC often says "talk to your users", but actually doing that is surprisingly tricky. YC Group Partner Gustaf Alströmer gives non-obvious advice on how to talk to both current and potential users, how to run a great user interview, and how to interpret the feedback in these conversations.
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