Hi Diego
Just be yourself. Remember to always smile and dont get too nervous. When you hand your resume to them, you will only have about 30-40 seconds to impress them. Dont get offended when they jump from one question to the next without letting you finish your sentence, just remain calm.
After that, hopefully they'll call you in for the group interview and finally to the one on one interview stage
Good luck and all the best
P.S I know the Brisbane OD was a few days ago, but how soon do you guys reckon they will come back again? I have to use up my 1 year before attending any interviews, and I get to go on interviews again after January! Sooo excited
God Bless