Like a good analyst, your job is to make your boss look good and to understand what's going on. Your boss may abuse you from time to time and you aren't supposed to complain really. This is a job where you can really start to shine. Other good things to do include figuring out when a job could be done better and going out and doing it. For example, create a database to track the results of an equity tender offer.
Initiative is key.
Also, getting to know clients is very important since you will be using those relationships later on. As an associate you are in . Your job now is to prove you have what it takes to make in investment banking. You may not always like the environment and culture you are in, but your job is to survive and eventually excel. You are only a few years away from getting your own clients, initiating your own deals and making some good money.