One of the main reasons we Christians fail to do the work of telling others about Jesus, is that we've forgotten His grace toward us.
We've forgotten the feeling of being lost. We've forgotten what it feels like to be without hope. We've forgotten what it feels like to grasp at something we have no idea we're grasping for.
When we forget, we grow cold.
When we forget, we grow apathetic.
When we forget, we grow indifferent.
We don't ultimately need better methods for evangelism (though I'm thankful for those who labor to help us in this). What we really need is to taste and see the grace of God.
Because when you taste grace, you can't help but talk about it.
Take a long, long look at the cross today.
Remember what Christ bore for you. Remember that it was your sin that sent Him to His death. Remember that He loves you that much.
Then, and only then, no amount fear, insecurity, or uncertainty will be able to silence the good news of Jesus from pouring forth from your speech.