It is my firm belief that God can use you to bring others into His kingdom. Why would God tell us to engage in this thing we call evangelism if it were not so? Know this: if God tells us to do something He also provides the enabling.
Proverbs 11:30 says, "The fruit of the righteous is a tree of life, and he who wins souls is wise." Daniel 12:3 tells us, "Those who are wise will shine as bright as the sky, and those who turn many to righteousness will shine like stars forever." Jesus said, "Go into all the world and preach the gospel." Question: Who is to do that?  Answer: You are!  We are!  In the original language, these words are addressed to everyone. Not just pastors, evangelists, and missionaries, but everyone: businessmen, housewives, students . . . everyone. No one is exempted.
It is also a command. Jesus is not saying, "If you can find time in your busy schedule, as a personal favor to me, would you mind going into all the world and preaching the gospel?" No, as our Savior, Lord, and Commander-in-Chief, He says "Go!" This is not "The Great Suggestion," but rather "The Great Commission."
Let me say something provocative to you: to not do it is a sin! The Bible tells us, "Any person who knows what is right to do but does not do it, to him it is sin."  - James 4:17
But God doesn't want you to share the gospel out of mere duty, but with joy and passion. One of the most exciting and fulfilling things you can do is tell others about Jesus. This message God has given us was meant to be shared, not hoarded. You were blessed to be a blessing. When you do not share, you begin to stagnate; however, Scripture tells us that, “those who refresh others will themselves be refreshed.”  - Proverbs 11:25.  Be refreshed… share Jesus with someone!