So long as you look presentable. Tidy shirt and don't be afraid of getting an outrageous tie (as long as it isn't hideous), little things can make them remember you. A black tie on a white shirt is easily forgettable and dull. I suggest you don't wear an Arsenal tie either, the interviewer might be a Spurs fan.
. It's also a good idea to ensure that your penis isnlt hanging out of your trousers when you go into the room.
I really do seem to be devoid of common sense. It's weird, i'm flying through my studies, yet struggle in the real world.
Just be yourself. Take the good with the bad - Try to give as good as you get. Some you win, some you lose. At least TRY ( and be honest. I take no satisfaction in anything not gained honestly )