Do the work of an evangelist.
Not all Christians have been given the gift of being able to preach the gospel. But if you feel it in your heart at all to preach, do it. The Lord wants you to preach for Him. Thirty years ago the well-known evangelist Billy Graham stood in an empty stadium in Moscow, Russia, and asked the Lord to allow him to preach the gospel there. In October, 1992, his prayer was answered and he preached to a capacity crowd that overflowed outside the enormous stadium. May God encourage you to do the work of an evangelist.