Try not to talk poorly about current team mates, directors or suppliers.
Do not be fearful to declare you don't know an answer.
Think of perceptive questions to express that you're curious and have thought about the opportunity.
Do not go off topic. Keep your thoughts on the things you are good at.
Take a seat, be calm, take a few minutes to set yourself ahead of going through the door.
Suggestions for those looking for employment:
"Get involved. The more people you know, the better your chances of making helpful connections. Opportunities are all around you. Your family members and current friends are rich sources of employment referrals, of course, but try to actively seek out other connections you may have. No matter whom you meet try to weave it into the conversation that you are looking for a job."
It may be nice to have:
Be able to provide references
Good people skills
Attention to Detail and the ability to develop your own ideas
A team player with experience of supervising a team within a similar environment