The Girls Scouts of Hopkinton are sponsoring Caroling on the Common on Saturday, Dec. 4, from 4-6 p.m. at the Town Common. This free community and family event will include children’s crafts and activities, the town tree lighting, caroling, a handmade gift sale, a Santa sighting, photo opportunities and the collection of donations of new pajamas for Project Just Because. For more information, visit the event’s Facebook page.