Light conversation asking if you're flexible. No real assessment. If you work in retail before then you will have a much better chance of being hired. I wouldn't say you need to worry too much about the interview.
Me postulé en línea. El proceso tomó 1 semana. Acudí a una entrevista en Shell (Leeds, England) en ene 2016
Entrevista
Submitted CV online and had an interview within a few days in the office at the petrol station. Standard questions asked about experience and your strengths/weaknesses. Nothing tricky involved. Whole process was completed within a week.