You can tell from its menu whether a restaurant expects to serve tourists, locals or regulars.
At a tourist-centered eatery like those near Times Square, the menu typically is huge: many pages, difficult to scan, sometimes difficult even to hold. There's something for everyone and it's designed to please customers who are strangers.
A restaurant catering to locals will have a much leaner menu, maybe just four or five items in each category. They will all be of a certain type—no words like "Asian fusion" to disguise lack of focus. If the joint is Korean, it will serve Korean.
A third and much rarer type is the restaurant that offers just one multi-course meal each night. Regulars go expecting to be served the chef's whim of the day, not handed a long menu.
When customers are strangers, the owner must imagine what will please a patchwork of German tourists, Chinese tourists, families from Iowa, young techies on the prowl, and marketers in town for a convention.
The better an owner knows the customers, the more focused the menu can be. If not the actual customer, at least the type of person who will come in.
Voting isn't all that different. When politics is local, candidates tend to know their people or at least know their interests, worries and hopes. This is the level at which democracy tends to work best. Leaders know their people, people know their leaders, and known interests are at stake.