I changed the title to reflect the question I have.
We all like to eat (duh) and to eat delicious things (again duh). While all of us can spot delicious once we taste it, there are thousands of restaurants in New York City alone (my home town); across the world, there may be millions!
No one can eat in them all! (nor would any sane person want to).
So, how do you spot delicious BEFORE you enter?
Anyone at all can go to high-end great places; anyone with access to this site can go to places recommended by others. But some people (a lot of them here) seem to have a knack for finding the places we would all like to eat in.
How do you do it?