A reason for the hope that is in you

John Lennox gives an encouraging talk with (mostly) good advice and helpful examples on how to talk to people about Christianity:

Lennox notes the #1 reason people leave the church (in England) is because they don't believe their questions have been addressed. In that vein, Lennox mentions he sometimes simply does a Q&A on whatever questions a congregation wants to ask instead of preaching a sermon to them. Here's the video:

Lennox writes more on these issues in his little book Have No Fear: Being Salt and Light Even When It's Costly.