In set 3 we talk to the people on the Normandy and go explore the Citadel inside and out once we've arrived. There's many different races with each their own thing and many things going on there. We meet a lot of people and try and help them out if they need some assistance. We also progress through the main story line by talking to the Council about Saren and find out how things are going behind the scenes. There's many influential people in the Citadel, that's for sure.