Don't go off topic. Keep your brain on the things you are good at.
Interact, perhaps, with the firm's twitter profile.
Get there in time, to feel calm and ready for a great meeting.
Make a good first impression, offer warm greetings with all you speak to. Stand up, make a smile, keep eye contact.
Eat properly before - and no stinky ingredients!
Advice for Job-hunters:
"Upon reviewing suitable professions/occupations, certain preferences will appear as credible and natural choices. It's realistic to think that no one profession has the options to make the most of each of your competencies and embody a way of operation closely well-matched with something like yours."
It may be helpful to have:
A natural educator with leadership experience, you will constantly look for ways to share knowledge of best practice with those around you
High degree of self-motivation
Represent the company in a highly professional manner