Acts 8:35 tells us, "Then Philip opened his mouth... AND HE PREACHED JESUS."
Sometimes, when we think of trying to lead others to Christ, we get a little overwhelmed with what we need to teach them - so it causes us to not teach at all. But when it comes down to it, it's simple. We just need to preach Jesus. When we preach Jesus, we preach everything that is necessary for salvation.
Preaching Jesus results in belief - whole hearted belief. The kind of belief that changes lives. So when we have the opportunity to teach others, we need not be overwhelmed - we just need to focus on preaching Jesus.
We can preach Jesus even through our actions - We are Christians named after Jesus Christ. When others look at us, they need to see Jesus Christ living in us.