Listen and Learn
I find often that people, when they're trying to speak to someone else about Jesus, don't take the time to listen. They talk too much and listen too little, and therefore trying to answer questions that haven't even been asked. They're trying to give information that people aren't necessarily looking for.
We need to grow in learning how to listen. Slow down, listen to the deep longings of the heart, listen for the disappointments in their past, listen for the desires they're trying to meet somewhere else. And, as we listen to those things, we'll know how to speak the truths of Jesus into the real desires, longings, and brokenness that they're facing.
To become truly gospel fluent is to be able to listen to somebody well enough to hear the real longing or hurts that they're dealing with.
The truth of the gospel frees us from the power of guilt and condemnation.
Introducing people to Jesus involves showing them how Jesus meets their needs better than anything else.