What is the smallest thing that could add value (and make sense)? A better standup? A better retrospective? Inviting a customer to a demo? Pairing for a day? Agreeing to get something into product in a couple days? Try that. Make one thing make sense as in “wow, I can see how that created value”.
Don’t tell them “how it works” or “what it is” and certainly don’t tell them how wonderful your company is. Just tell them in big, uncluttered, blatantly obvious terms what your service is for. Novice users need to know when your service would be useful in their lives.
Take a look at Twitter’s homepage for new users. It says simply, “Welcome to Twitter. Find out what’s happening, right now, with the people and organizations you care about.” Same story at Facebook. “Facebook helps you connect and share with the people in your life.” Brilliant! Now the tech novice knows, in no uncertain terms, when and why these sites would be useful. Twitter is for knowing what’s happening and Facebook is for connecting and sharing.