Don't overthink it, just get out there and talk to people. The more the better. In my experience, the limiting factor on day 1 is a lack of information, so your job is to learn until it's fairly obvious what to do. Thinking doesn't really generate new data, only action can, so walk into every restaurant you come across, write cold emails, etc.<p>As far as how to conduct these sorts of interviews goes, a few people have mentioned the mom test - it's v short and simple but it is indeed good. People, for the most part, avoid conflict and so don't give you honest feedback. Instead they tend to be complimentary, but non-committal. As a result, you need to be a little indirect in your line of questioning, and pay more attention to what they do than what they say.<p>When it comes to testing a product, try and deliver the value manually instead. Businesses don't buy software, they buy solutions to problems. Software is just a way to deliver the solution to many customers. If you can't convince someone to pay you to keep their menu up to date by hand, they won't pay for your software to do it either. Perhaps you convince them to give you the relevant credentials to update menus across platforms yourself, and then they email you when something changes, or you give them a google form, or you go into the restaurant every day and ask what's new. Not everyone is open to working with someone in a scrappy way like this, but you'd be surprised.<p>You can easily serve a handful of customers manually like this, which will give you the data you need to decide if it's worth it, and the data you need to build the product.<p>Anyway, good luck!