International interviews vary from nation to nation, culture to culture. It would be literally impossible to list all the nuances for each country here. Before applying and interviewing with any international organization students must research to ensure their resume, cover letter and interview techniques are in line with the country of focus. Also that they are aware of any cultural differences in the job/internship application process.
One of the best resources available is GoinGlobal which is on The Center for Career Development's Career Resources on-line Guide. Click on the country in which you are seeking to work and scroll down to the sections on resumes, cover letters, interviewing and cultural advice.