UV, I would be cautious regarding coming out as an Occultist. Chances are your casual comments and actions will have clued most of your "inner-circle" of friends/family in to the fact that you are, at the very least, not a christian. Your 'inner circle' will probably be very accepting and easy to 'come-out' to. The more problematic group would be the slightly better friends than co-workers you don't hang out with but who aren't in your inner circle group, there I would be more cautious and would recommend a slower process, perhaps starting with publicly reading one of the more innocuous books on Esotericism or the like (I know Esotericism might not be your flavor of Occultism, given your indication of discordianism earlier) to kind of break the ice and perhaps get a conversation started. Feeling out someone's reaction with a library book might be a more gentle method of introducing the topic than something like, "Hi, my name is UV and I am ..."
For complete strangers, it depends on the situation. I wouldn't answer the door and invite the cute Mormon boy on his mission in to join you in ritual to Eris, but if out at the mall/shopping/dog park and a random prosletyzer engages you, if you feel safe, it might be useful to come-out (if for no other reason than to see the look on the prosletyzer's face as he/she tries to work out that you aren't concerned with not going to 'heaven' by their standards).
One thing, I am pretty sure I read on one of your posts that you and your partners have/want kids, yes? I am not sure where exactly you are living, but be cautious please. Unfortunately, there are a lot of small minded folks out there who would think (and make it a mission) that getting your kids removed by CPS because of either your Poly- status or your Occultish status would be the height of service to your kids. I don't want to scare you, and you probably know this even better than I do, but please be careful who you come out to.