Always contribute positively
If you are given a task to do, give your 200% and nothing less. Take every task, no matter how trivial, as a challenge and accomplish it to the best of your abilities. If you lack in some area, always seek guidance from your peers and superiors. But never say never.
Be Proactive
Never wait for your supervisor to ask you on follow ups of the already assigned tasks. Never give them a chance to run after you and pester you for results and updates. Get reports in early and have your communication channel open, and keeping them abreast of all updates on the project and tasks assigned. Do not procrastinate on tasks and work.
Fix issues do not just point them out
Whenever an issue arises, try to find a solution or work towards one. There is no point in pointing out lots of problems and excuses for something that has gone wrong. It is very easy to point out issues, problems and mistakes within an organization, but very difficult to suggest solutions. The best of the lot are those who have suggestions and solutions to issues. If someone continues to point out issues, he/she will soon be branded a “whiner” within the organization. Also, the management will never consider that person for leadership role as he/she is more likely to fail.
Small minds find excuses. Great minds find solutions.