I found a great video online recently where Bono answers the question of “Who Is Jesus?”

I think this is a great starting-point to talk about our faith as Christians with people who may not yet have made the decision to follow Christ. Power To Change has a number of great articles on this topic, including this followup series.
http://powertochange.com/itv/spirituality/jesus-is-unique-8/

Jesus claims of divinity