Pair with an internal user or customer support person and explore your application together. Share your findings on The Club.
This is actually a pretty recent experience for me in that through our LTG merger I was acquainted with a new manager, a new overall test director, a new VP of Engineering, and a CTO all at the same time. By interacting with each of these people, I've had the chance to show what Socialtext is, what it isn't, and what we need to do so that we can get all of our moving parts to work in context together. Each interaction helped me see both the areas that people understood about our product and areas where there were some gaps in understanding or context.
Because of the nature of how we configure our product suite (this is going outside of Socialtext now) we had several people discussing our product (the broader PeopleFluent/LTG product offerings in this case) and when it clicks with people exactly what our product does and how it does it, there's this smile and a reckoning of what goes where and why. Don't get me wrong, sometimes there are other emotional reactions other than smiles but those are thankfully the more common ones. Additionally, it's also neat to see what other arms of our broader product do and how they interact with and integrate with our platform. Consider this a strong "two thumbs up" to demoing and looking t as much of your product with as many people from as many business interests as you can. My guess is you will learn a lot from those interactions. I certainly have and will most likely continue to :).