The best way for a Christian to communicate his or her faith is to try to live it, to show the love that Christianity should involve in every aspect of life. This will make more impression and be a more effective witness to the truth of Christianity than any number of learned lectures. What is more, it is something that each of us can do, in whatever walk of life we may be. The only requirement is for us really to take Christianity seriously. Very few people actually do this. They pay lip service to Christ, but do not allow Him to affect their lives.
(from And If It’s True?)