When we simply preach or teach the Scriptures simply, we basically open the door for the Holy Spirit to do His work in people's lives, because as believers this is what the Lord through His Spirit told us to go do. You know preaching doesn't have to be all preachy or religious.

Use righteous bait that the fish actually like so to speak, and put a hook into every opportunity. Measure your life, attitude, and message against God's word. You want the people to hear God's message, perhaps some from your own what God did to save you..and to be pointed to Jesus Christ the ultimate Savior and Solution.