[Salvation]

Explain the ashes -- the scripture about sitting in ashes is an OT reading. Then that it is a way that Catholics start Lent.

And then invite them to further conversation -- off company time if they want to know more. Maybe even invite them to go with you to Mass during Lent.

[T Minus Four]

That's pretty much what I do. Every year I explain the ashes, and most people are at least politely interested. I use it as a chance to talk about the Catholic faith a little.