I personally simply exert some kind of caution and deliberation before deciding who I speak with about these things.
Not everybody will react positively, and there's no use unsettling other people with things they don't even want to hear. Especially if that can mean trouble in the future that is simply unnecessary and avoidable.
But there is not really a separation in my eyes. Some people have simply come here choosing to live their lives mostly ignorant and uninfluenced by "supernatural stuff". It's their choice, and for the most part (almost always, unless I have a truly strong feeling they NEED to hear something), I respect that.
For some, there may come a time where they will be shaken to their bones and have their eyes forced open, but that is not my "job" to accomplish.