The holiday decorations in some Main Street storefronts are blue, but merchants were not during the town’s Think BIG, SHOP Small event on Nov. 28.Shoppers ogled baubles in the cases at Miami Lakes Jewelers, where a security guard helped enforce social distancing and made sure customers wore masks before they entered the store.Mercedes Mathias, a store manager, said, “We’ve been extremely busy. Pandora, Tous and Tacori, that’s what people are...