If you work in casting, it's sort of not cool to want to act. A lot of people think that casting directors are frustrated actors, but it wasn't true with any of the casting people I knew.
No matter what the character is, I just say to myself 'If I, Melissa George, was in that situation, how would I react?' and once you do that you can just go for it, and hopefully the performance comes through.
If we ask a vague question, such as, 'What is poetry?' we expect a vague answer, such as, 'Poetry is the music of words,' or 'Poetry is the linguistic correction of disorder.'

