Try this for a good time: Join a group of strangers who disagree with your politics. Well, believe it or not, hundreds of Twin Cities residents have voluntarily participated in community circle dialogue groups this spring. They talked about eliminating racial barriers in education, housing and the workplace. Participants meet in St. Paul (tonight) Thursday evening at Macalaster College for a wrap-up event. A national figure in renewing civic participation says the popularity of citizen discussion groups is rising because of mistrust of experts. Minnesota Public Radio's Dan Olson has more. --------------------------------------------------------- | D-CART ITEM: 4151 | TIME: 3:48 | OUTCUE: "...soc --------------------------------------------------------- Lynelle Charay (sha RAY) was the lone African American in her community circle dialogue group. She grew up in a segregated Mississippi town before moving to Minnesota. Charay, a Minneapolis public schools social worker, says if