How much do we need to tip in Australia?

We don't tip in Australia. It isn't done. It actually makes a lot of people uncomfortable if you do because we feel it's money we haven't earned. My mum and I went to the states last year and felt it weird to tip. We didn't have a problem with it but we had to be careful to remember because we are not used to doing it. I live in Queensland btw, hope you have a great time. It is really hot here at the moment.