My 20 year old son uploaded his CV and half an hour later the phone rang, inviting him to an interview next Wednesday. It's for a company called Teleperformance. It is not a sales position, it's a customer service advisor role. He will be taking calls from customers of either Vodaphone or Sainsbury's if he gets the job. It will be his first ever job interview, and as I know nothing about this line of work, I was wondering if there was anything he ought to ask at the end when the person interviewing him says, "Any questions?" Thanks.