Student life is totally different from the professional life. Whatever you see and read about professional life from book actually varies from the reality. So, it is very important to get over the childish behaviour of student life and be sensible when it comes to work. Undoubtedly, there are several things you can understand unless you start working. Let's have a look on the fantastic and feasible advice about professional life.
When you are in job then don't deny the invitations for lunch, dinner or any social gathering. If you say no for two times then you will not be given invitations any more.
Taking too much work makes you look very busy and sometimes stressed too. There are many people who work very hard but still fail to get promoted as they have been mistaken to be overburdened. Hence, they have been avoided from further opportunities.
Helping people at workplace is always a great idea. Help them even if they are not going to benefit you. Although it does not take much of efforts but definitely helps in building rapport with them.
No one is perfect since beginning. All learn with experiences and by observing others. So, if you lack in any skill then learn from others who are good at it. Identify what is right for you and modify them as per your requirement.
Try to gather various experiences as these are very helpful. There are many people who have experience of several fields are more successful than people who are experienced in one field only. So, expand yourself.