Be sincere, upbeat, attentive, sure of yourself, plainspoken and to the point.
Think of body language like not playing with a pen, sitting upright, not slouching and speaking clearly.
Sit in the car, be calm, take some time to set yourself ahead of entering reception.
Think about your responses.
Suggestions for those looking for employment:
"Your CV will not earn the gig on its own. Its 'job' is to earn an interview. Make sure your CV will arouse the employers’ attention so that you can get the first interview - and then that is where you can earn the job."
Key things for this position:
Should conduct yourself in a professional way
A capable teammate, adept enough to initiate friendships
Provide references from past work
Relevant background in a related job and over one years' involvement in this industry