If the conversation/flirting comes to would you like to do xyz with me. I would then say to the man. I would love to do xyz with you but just so you know I am married but I have an open relationship. Then we would have the polyamory talk. I am blunt and to the point.
For example met Murf while out with friends out at classic car cruises and events locally . I am in the classic car scene Butch is not. One of the stops is at a local diner Murf asked me out over dinner on our third meeting. We that night had a talk about poly and how I ran my relationships. After mulling things over he decided he wanted me in his life. 2 years later we get stronger day by day.
40 yo straight female
Married in the eyes of the government to Butch since 2001...
Murf my monogamous second husband has been with me since May of 2012.
In a V relationship with an average 60/40 split of time. Only due to Murf's and Butch's crappy work schedules.