You just need to start with real communication with your client, then there will be a good result.
Of course, you need to look for contact with potential users and potential investors. And how this will be done is not so important. You can participate in conferences, you can actively advertise yourself on the Internet. The main thing that was the result!
Sometimes I think that in this thread there is not enough of devs participation. However, team members have lots of things to do and now everything goes nice