Read up on the business, interviewer, and their history.
Try not to talk poorly about current team mates, directors or suppliers.
Think of body language like not playing with a pen, sitting upright, not slouching and speaking clearly.
Don't worry by thinking of pessemistic happenings.
Do not use unprofessional terminology.
Suggestions for those looking for employment:
"Prepare jobseeking materials and forge job hunting competencies. As soon as your job goals have been picked, CVs and cover letter can be tweaked to show your merits so that they agree with the requirements of possible employers."
It may be nice to have:
A colleague who doesn't mind to 'chip in' whatever the problem