Eat an energising meal beforehand - but no smelly meals!
Make first impressions count and offer warm greetings with all you speak to.
Make it in time, to be chilled and ready for your interview.
Don't be late. Plan for all eventualities.
Detail the goals of your career and the reasons you like the opportunity.
Sit in the car, be calm, take some time to set yourself ahead of entering reception.
Do not go off topic. Keep your thoughts on the things you are good at.
Suggestions for those looking for employment:
"Some individuals believe that they cannot afford to take time from their studies or a 'demanding' job. Others simply stall. Whatever their reasons, the results are the same - your search will surely languish and you may miss out on industry hiring cycles and job opportunities. So get yourself organised early by setting aside a certain amount of time each week to work on your search. Use a calendar and weekly planner and work backwards from your job target date."
Key things for this position:
Is able to work during heavy pressure
A colleague who doesn't mind to 'chip in' whatever the problem
Complete other ad-hoc work as requested
Should be a pleasure to work alongside
A good colleague as well as work to own initiative