I'm going to be at a conference at the prudential center Friday through Monday. Are there any places that I just can't miss in this area? During the day I am looking for cheap/good/possibly ethnic or local chow. At night I would like a place where I can hang out with a few friends, relax with a drink or two and get some good bar food. Preferably somewhere I won't feel out of place if I accidentally leave my prada handbag at home.