The interview usually starts by talking about the candidate's previous work experience. The atmosphere is formal. It is up to the interviewer/ employer to make the atmosphere more relaxed.
The employer pays attention not only to the way you speak and act, but also whether your appearance and dress are suitable for the vacancy. You should also give a good explanation of your motivation.
After the employer has explained the duties and work that have to be carried out, the applicant can ask questions about any issue that is not clear. This can include the nature and duration of the contract, pay conditions and anything else.