Ask God to give you wisdom in sharing your faith. I find it helpful to carry suitable material, such as good testimonies, tracts or booklets, Christian DVD’s, etc, that I can give away as opportunities arise. When you have something good to give someone, it is not hard to witness. It is beneficial to memorize some Bible verses and a simple salvation presentation that is effective when speaking with other people, but most importantly you have to learn how to share your testimony. Your testimony is simply sharing what Christ has done and what He is doing in your life (Mark 5:19).