It is important to realize there are really two questions here, not one. Question one is “How can I be a witness to my
friends?” Good question, and it recognizes that Jesus Christ gave a job to his
followers when he ascended into heaven. He said to them, “You will receive power when the Holy Spirit has come upon you, and you will be my witnesses … to the end of the earth.” If you have believed in and confessed the Lord Jesus, you have accepted the same ongoing task they did. That’s fantastic.
Question two boils down to “How can I maintain my present relationships as they are while witnessing to something that
transforms lives, upends worldviews and tells people hard truths about
themselves they may not want to hear?
That may be possible. And it may not.