How can someone with a Christian worldview be “in the world, but not of the world”

How can someone with a Christian worldview be “in the world, but not of the world” (John 15:19 & John 17:14) in their workplace but not annoy and turn off those who do not share the same view and need to hear about Jesus? Use the epilogue from Keller’s 2012 text as a prompt in order to develop a personal strategy for integrating your faith and your work. 6pages