Distributing books to Christians and Muslims
While I was distributing books, if I stopped someone and they said they were Christians, I would say, "That's great! Do you know why? Because there are so many atheists, and atheism increasing all over the world. The book you have in your hand [Bhagavad-gita] has many good arguments against atheism, so you're going to love it. On top of that, we aren't trying to change your beliefs. But there is always more to learn, especially about God, because God is unlimited."
Then I told them, "You have very good energy. Do you know why? Because you believe in God."
When I meet Muslims, I say the same thing. And they also take books, not as many as the Christians, but they take a book much more often than when I do not say this line.