Your neighbour supports himself as a shoplifter and pickpocket. Do you meet up with him for a beer and chat amicably creating the impression that you approve of his conduct
You lead by example. I have had personal experience in my own life of this. By giving a quiet example of goodness, kindness, compassion and truth you gently influence those around you. I am a very ordinary person, nothing special, but through prayer, asking God's help, and a gentle and kind approach to others who are suffering, I have managed to bring one person back who had totally lost their faith in God and bring another person who had never had any
faith, into belief in the existence of God. You talk to people, you listen, you show sympathy, empathy and understanding and you show them by example that there is an alternative to the choice they mare making. People are inherently good and the Godhead as the Hare Krishnas call it, is never extinguished in any of us. Nobody is beyond redemption.