Don’t say it if you don’t mean it

I’m wondering, do people realize when you say something like prayers for France or I’m praying for you, that is not just an expression you are actually supposed to pray for them! I see so many people (especially celebrities) saying they are praying for France but some of them have said that they don’t even believe in God! Prayer is real and you shouldn’t say you are praying for someone if you’re not really going to! Prayers really going out for the people in France, May God be with them!