Liberal Christians? Sounds a bit like an oxymoron to me, personally.
That said, I usually leave religious people alone unless they're completely fucking crazy about it (even though the concept of following a fabricated "god" goes beyond me, and I'm only agnostic). Sadly a lot of religious people here are die-hard catholics who won't hesitate but shovel their shit down your throat. Thankfully due to the whole peadophile priest controversy that is happening over here, there is a steep drop in the amount of catholics and thus don't have the grip over the government that they once had.