Authentic relationships. Authentic witness

Someone told me just the other day that young people today can spot inauthenticity quickly, and once they think you are not “authentic” you’ve lost them and you’re not likely to regain the connection.

How would you all define or flesh out this idea of authenticity? What does that look like in evangelism? Any one-on-one stories that might shed light on this?

I’m especially hopeful that some of the younger Connect members will respond.