The answer is simple. Don’t start by preaching, don’t start with morality. Don’t start by trying to be angelic. Start by caring for others. Jesus said,
34 “So now I am giving you a new commandment: Love each other. Just as I have loved you, you should love each other. 35 Your love for one another will prove to the world that you are my disciples.” John 13:34-35
So how do you “love each other?” Good question, but I think it’s being helpful, caring for others, being honest, being a hard worker. I think that you have to love people whom you disagree with and that even if you can’t accept a person’s actions or opinions, you can still be gentle and can still care for them. I could be wrong, but it certainly can’t hurt to try it.