In this day and age one of the most understated skills is being able to nail an interview. You will all do one when you get a job, regardless of what kind of job you are going for.
My best advice for doing well in an interview is to watch some Charisma on Command.
Here is a learner guide to go over all the different things you'll need to know for an interview.
But the best thing to do is to practise. When you are ready you can fill in this task and record an interview.