“How to Be an Effective Citizen Lobbyist”: 7-9 p.m. Sept. 18, First Parish Unitarian Universalist Church vestry, 630 Mass. Ave., Arlington. Want to learn more about how to be heard and influence government decisions? Join in for a conversation with state Sen. Cindy Friedman and Colleen Kirby, the criminal justice legislative specialist for the League of Women Voters of Massachusetts and a member of First Parish Arlington’s Mass Incarceration Working Group. This free program is sponsored by First Parish Arlington’s Mass Incarceration Working Group and is open to all. Questions? Email end-mass-incarceration@firstparish.info.