We all do it.
It is a social question asked many times a day. It is not intended to start a conversation (and usually doesn’t), but asked all the time.
Hey, how are you? < Fine, how are you? > Fine.
So now, I change it up: if I am asked the question: “how are you?”; I respond: I am overweight, hypertensive, but I have the peace that passes understanding.
Either one or two things happen: they smile and nod and continue on their way, or they pause to comment on one of those responses. When you pause, guess what happens? Yep they get to hear about the peace that comes from knowing my sins are forgiven through the death, burial and resurrection of Jesus.