Christians indeed are known by their Fruitful LIFE, they are full of Divine Life [2 Corinthians 5.17] and they walk in Light, they walk in Love. Anyone can witness their Love, Compassion, Kindness, Forgiveness in their words and deeds, resulting from the change in their Thoughts and Intents of their heart from the Domination of CHRIST/Spirit of GOD in them...World can easily know a True Christian from their Life of: Righteousness, Justice, Love, Compassion, Forgiveness and Peace for all!!! Become and be a True Christian my friend!!!!