In order to be true to oneself and to the christian faith, we should strive to exemplify the teaching of the Church. We are witnessing our faith when we live as Christ taught us to live, letting Christ shine in all that we do to those around us. This is the true meaning of witness.
I believe in God the Father Almighty, Maker of heaven and earth, and in Jesus Christ, His only Son, our Lord who was conceived by the Holy Spirit, born of the Virgin Mary, suffered under Pontius Pilate, was crucified, dead and buried; the third day He rose from the dead, He ascended into heaven and sitteth on the right hand of God the Father Almighty; from thence He shall come to judge the quick and the dead. I believe in the Holy Spirit, the Church Universal, the communion of the saints, the forgiveness of sins, the resurrection of the body, and life everlasting.