Eating alone in restaurants

What do you feel when you see a woman dining alone in a good restaurant? Would you ask her to join you? And how?

Ann Althouse, a law professor, quoted an article in New York Times about that.

The most interesting part is the comments section.

Ms Althouse posted in one comment, "People eat in nice restaurants because they are hungry, they want good food, and they can afford it. They do it alone because they aren't so self-conscious that they avoid doing what they otherwise want to do."