Credit Casey McDermott / NHPR Gov. Chris Sununu’s surprise decision to lift New Hampshire’s statewide mask mandate this week leaves residents, businesses, local officials and health care workers with big decisions to make about their own safety and that of those around them, as COVID-19 continues to pose a risk to public health. The most immediate impact will likely be felt in the state’s retail sector, where businesses must now decide whether to set and enforce their own COVID-19 policies, and customers will face a patchwork of restrictions, store to store, restaurant to restaurant. Patrons at any of John Tinios’s restaurants on the Seacoast will now encounter a sign that explains they would appreciate customers continuing to wear masks, but there will be no requirement.