Join Mayor Curtatone, Alderman Gewirtz, City and elected officials, and your neighbors, at the Davis Square Theatre, 255 Elm St., from 7-8:30 pm., to share data and talk about what’s going on in Somerville and your neighborhood. A social half-hour (with free pizza!) will run from 6:30-7. And, if you haven’t already, help shape the agenda for Wednesday by taking this survey: http://bit.ly/tUWAOe. Please note, the Davis Square Theatre is below Foundry.