Choosing who we are around is not always easy. We are to keep away bad influences while also witnessing to those who need to heard the Gospel. Your closest friends should be Christian and your main goal when being friends with non-Christians should be evangelism. The greatest thing you can do as a friend, is to lead people to life in Christ. If your friends have never heard you talk about Jesus before, that needs to change. Share truth with those in your life and be a true friend. Be vulnerable, show love, and be wise in who you spend your time with.