When me and my husband and my LDR BF and is wife go out, people are often confused as to who I am married to. My LDR BF's wife is okay with me and her husband acting like teenagers when we are together, whether she is with us or not.
We have had men live with us, and it was way obvious that they were more than just room mates. My mother-in-law has known from the beginning about our relationship. My husband and his ex were very open.
I have had sex with three men that work with my husband. And everyone knows it. And it has never been an issue.
We live just a few blocks from a swinger motel, the Mon Chalet, here in Denver. We have met several friends there that we didn't know were poly or swingers, but they always tell us that they knew about us, that it was obvious.
We, me and my husband, have met men while we were out together, and they always tell us that it was obvious that we had an open relationship, and that it would be cool to sit with us and be very open about their attraction to me, in front of my husband.
I think that when you are open, about pretty much everything, it is obvious to everyone around you. We are open, and we ware glad that we have never had to have a "story."