There are lots of Indian places in Central Sq. There are a number of cafe's, although our west coast friends will probably be disappointed. Finally, one reason to love Boston is the city's love of good quality ice cream. Toscinini's is one of the best, with locations in the student center and on Main St. near Central Sq. There are two main areas for dance clubs.
Most places have a dress code which generally excludes t-shirts, jeans, and sneakers.
Most places want men to wear slacks of some sort, and a button down shirt with a collar. The rules are more relaxed for women. Hotwired also gives this directory . Some people particularly like Club Passim . There is a swing event every night of the week somewhere in the Boston area.