What are your thoughts on people who wear crucifix necklaces?

I used to wear a crucifix necklace but kept it underneath my shirt. Unfortunately, the cross fell off the necklace and I haven't wore one since. As for what I feel about those who wear them, more power to them. It's a sign of religious expression, but not everyone who wears a crucifix is a Christian or follow and speak in the ways of Jesus Christ.