Faith is a matter of much debate these days.  Some people claim they live without it but that is not true.  The idea of faith is bigger than limited boxes we usually try to shove it into.  Faith does not mean belief in God or some religion.  Those are types of faith, but not faith itself.

Faith is the state of being ultimately concerned: the dynamics of faith are the dynamics of man’s ultimate concern.
Paul Tillich. Dynamics of Faith p. 1

I know some people who have faith in reason, money, personal ability, and meditation.  These are their ultimate concerns.  They don't think of these things as objects of faith, and it is not my place to correct them.

When talking about religious faith, like I and many others have, my faith in in God.  Beyond that I really cannot say much.  God is the Penultimate Ulultimate.  There is nothing and no one beyond. 

When I talk about God, I enter the realm of Mythos, because any God who can be defined in words is no longer ultimate, and thus is an idol.  So why bother talking about God at all then?

I experience God through the practice and exercise of  my faith, and the Grace I find through out my day.  I have a relationship with God, and love him with my whole heart.  How could you love someone and not what to talk about them.

Faith as the embracing and centered act of the personality is ‘ecstatic.’ It transcends both the drives of the nonrational unconsciousness and the structures of the rational consciousness.
Paul Tillich. Dynamics of Faith p. 7

I don't believe in Don't Ask, Don't Tell in any of its forms, but like with any relationship, I know who wants to talk to me about it and who doesn't.  We need to respect our friends, and especially strangers, and not brag on our faith.  Vanity is a wicked habit that distracts us from the work of reconciliation.

The term ‘ultimate concern’ unites the subjective and the objective side of the act of faith—the fides qua creditur (the faith through which one believes) and the fides quae creditur (the faith which is believed). The first is the classical term for the centered act of personality, the ultimate concern. The second is the classical term for that toward which this act is directed, the ultimate itself, expressed in symbols of the divine.
Paul Tillich. Dynamics of Faith p. 11-12