babee_blu_eyes:
Exactly! Be yourself and display a fair amount of interest in accounting and EY.
For group discussion, as Minai said, don't dominate. I'm the kind of person who ends up dominating anything - just telling everyone to shut up and listen to me. I identified that before these interviews came up - actually, I identified that last year when my English Teacher said "you're an outspoken one aren't you?" I've been working on that for quite some time.
So, again, as Minai said, I tried really hard to keep all my opinions to myself. And the "what do you think?" and "what are you worried about?" keeps you getting noticed. Also, when everyone else is speaking, nod along like you're really listening.
And really, its alright if the group ends up going a different way to what you would like - just be sure you support it and dont stick out like a sore thumb.
Written essay: its really common sense. Nothing technical. None of the entire day requires prior knowledge in accounting really.
Good Luck guys! Get there early, have a chat with everyone and enjoy the great food and tiny cans of coke
May the force be with you