REACH Beyond Domestic Violence will hold its inaugural scavenger hunt during “Say Hi to Your Neighbors Week,’’ which is part of the local nonprofit’s yearly Small Actions campaign. “Say Hi’’ week will begin Saturday and offer events across the city through March 8, according the organization. The activities, such as sending edible treats to neighbors or attending meet-and-greets with local officials, are designed to encourage residents to get to know their neighbors. Allison Berry, REACH’s community organizer, has said that saying hello to strangers, acquaintances, and neighbors can help create a safer community, break the isolation felt by people experiencing domestic violence, and help citizens look out for each other. The first scavenger hunt will take place March 8 from 11 a.m. to 1 p.m., starting and ending at the Watch City Brewing Co. on Moody Street. Details on the week’s list of activities and advance registration for the scavenger hunt are available online at www.reachma.org; participants in the scavenger hunt can also sign up on March 8 starting at 10 a.m.