My favorite things about the city are the people and the food! It's very easy to meet people here because everyone is very friendly and loves to practice their English or to help you with your Portuguese. There's food everywhere! I don't believe you can walk more than a few steps in any direction without coming across a place to get something to eat...and that's not including the many street vendors!
I've met many people through friends of friends and also through going out with my new friends. Last night we went to a place called the Red Pub (entry fee was half off with a college id) and they were having a celebration for Chico Buarque.
As far as food goes, some of my favorite new dishes are picanha:
farina, and fried pork skins:
arroz (rice) e vinagrete (tomatoes, peppers, onions, and vinegar, and other special seasonings):
as well as calabresa and onions.