The 31st Annual Poolesville Day will be like all great holiday festivals: Its greatness is not so much in its uniqueness as it is in its fine-tuned tradition. As an annual reunion of sorts for neighbors and acquaintances, the event fulfills its time-honored rep-utation as a day for all: young and old, new to the town, and lifelong residents. For visitors, there is no better day to get a “feel” for the community.