1) Some people are convinced to follow Jesus Christ by watching YOU.
It's true now and it was true back in Jesus' day. After Jesus raised Lazarus from the dead, Lazarus became walking and living proof that Jesus was God in the flesh. John 12:9-11 says:
"Meanwhile a large crowd of Jews found out that JEsus was there and came, not only because of him but also to see Lazarus, whom he had raised from the dead. So the chief priests made plans to kill Lazarus as well, for on account of him many of the Jews were going over to Jesus and putting their faith in Him."
2) Telling what Jesus means to you personally sparks other people's curiosity about Him.
You don't need to know all the facts at first to get people thinking about following Jesus (though they do help). Just start telling them what Jesus has done in your personal life and experience, and they'll want to know more.
"Now the crowd that was with [Jesus] when he called Lazarus from the tomb and raised him from the dead continued to spread the word. Many people, because they had heard that he had given this miraculous sign, went out to meet him." (vv. 17-18)
3) You never witness about Jesus Christ alone.
You're never alone, because God works behind the scenes while you talk with people who don't know Jesus. When Jesus spoke about himself, God the father was continually softening hearts (or hardening them) to his message. Be encouraged that it's not all up to you to bring people to know Jesus. God's got to work to make it actually happen.
"Then a voice came from heaven, 'I have glorified it, and will glorify it again.' The crowd that was there heard it said it had thundered; others said an angel had spoken to him. Jesus said ' This voice was for your benefit, not mine.'"
4) Time is running out for people who don't know or follow Christ.
This should be a wake up call for a Christian. Your friends and family might die before they're challenged to follow Christ if we're not diligent in bringing it up. They are not promised tomorrow. Don't pass up opportunities to talk about Jesus if you're given them. If you're not a Christian, listen carefully to Jesus' words here:
"You are going to have the light just a little while longer...Put your trust in the light while you have it, so that you may become sons of light." (vv. 35-36)
