It can be learned, just like any other skill. Seek and you will find. We can all find ways we like sharing the gospel. (It's exciting and unnerving to share the gospel, and Satan may attack by bringing fear to your mind, but it's great work). My mom has the boldness to go up to strangers and just start talking about God. She has asked strangers if they have bibles, and she'll go home and bring them one if they are interested. Me, I am comfortable writing letters to people, I have written 10 page letters (labor of love) and bibles to extended unsaved family, to old friends, telling them there is coming a day of Judgment for this fallen creation. God never intended this world to be like this, it was man's choice to sin and thus bringing death that we live in such a fallen creation. Individually, you, me, we have personally sinned against God by lying, stealing, lusting (Jesus calls this adultery), coveting, not putting God first. God is going to punish sin with a fire that never dies. Romans 14:12 says "each of us will give an account of himself to God." Rev 21:8 sums it up quickly "the cowardly, the unbelieving, the vile, the murderers, the sexually immoral, those who practice magic arts, the idolaters, and all liars- their place will be in the fiery lake of burning sulfur." Then, explain that God sent His son, a perfect, innocent man, Jesus Christ to suffer and take the punishment for our sin: the death penalty. He proved He had power to do what He says, because He has power over death. He proved this by rising from the dead 3 days later. He offers everlasting life if you repent and trust in Him. He took your punishment, in order to partake in His offering, you must give your life, in love and obedience to Him. He is the only way to God, the Creator of all things.For strangers, I use our postal system or e-mail. I am a real literature-type person, I send bibles to people (especially to Africa), I mail funny, or thought-provoking tracts, often I mail several tracts in an envelope. The best one is a penny pressed with the 10 Commandments with its corresponding card, looks like a religious souvenior, so at least that will get some attention, then I throw in other tracts. We must also pray for who we share with, and all unsaved because it takes the work and grace of God to bring someone to Him. This is just a few ideas. You can research and learn how to share your faith.