Some people feel they can not share their faith effectively unless they have a lot of Biblical knowledge or have been to their church evangelism class. It is quite the contrary. Sharing the Gospel should be a natural extension of your walk with the Lord. It is like when you have found something wonderful, you want to tell someone about it. Don't follow this couples comical example by using religious terms that non-believers won't understand. Keep it simple and let God do it!
Some Scripture references: 2 Cor. 5:18; Ephesians 6:15; 1 Cor. 1:17