If you are entering into corporate world which is full of uncertainties always remember some basic fundamentals which will really make your experience in corporate sector enthusiastic and charming.
Although i have not that much much personal experience in the corporate sector,what ever i would be suggesting would be from the general point of view and what ever i have realized in the past couple of months.
while in the early days of your carrier,don't try to lay your own path to your success,even if you did be sure that the way you have chosen will fetch you the results,because if it is giving the results,then you are putting two big entities on stake,one is your own future and other is your company who have hired you to realize their own dreams and missions.
So it is better to be calm in the beginning,follow the path given to you,in the mean time learn the fundamentals to lay a strong foundation to your carrier.
Other thing which i would recommend is that become a listening entity so as to get the impression that you are also listening to other people who are trying to give you something whether that is advice or something else.If you listen to people of different departments,different levels etc they also feel that they are being listened and respected.
Also try to mingle with people in order to know different personalities in your environment,and give them impression that you are also there who should be noticed.Try to add on something that is most needed by a particular while mixing with people,that could have long lasting impression of you.Because these are the people who could give you newer opportunities in your future not only in your existing company but also some where else.
And the most important when ever you would be having meeting with your manager,CEO etc,don't come on to conclusions early.