Is it a group interview cause I had one with them like a year back and he main things you should do (even if it's not a group interview) is Dress smartly so wear clothes as if you was going to an office I'd say show professionalism, have confidence you was to make yourself stand out from the crowd the interviewers shouldn't be talking much besides for asking questions if it's a one on one interview or if it's a group interview be the first to introduce yourself try to answer many question as you can but don't be over the top and finally DO RESEARCH I think that was a common problem when I was younger when I had interviews, I didn't do enough research on the company and when it came to a question like "what do you know about the company" Do you know what brands we do" etc they wanted a particular answer and cause I didn't do the research I didn't know what to say and I was very vague, which I think you can see on your interviews face that you've lost marks especially if you was doing well.