Connection occurs over time as trust is built and our new friends discover that we are open, authentic, caring human beings. If we are willing to share out of our humanness and human frailty, then the Light contained in these imperfect vessels of clay will shine through our cracks, inspiring hope.
It is not a bad idea to include another Christian brother or sister at this stage of the relationship. Adding another voice and Christian relationship will give more credibility to our message as we go along—as well, at a later stage, as providing a stronger base for nurture and disciple-making.
In addition to what Harms has written, I would be more explicit (in the courtship step) about engaging our friends in looking at what the Bible has to say about Jesus.