Usually, if one is in Australia on a business trip, Australian colleagues will invite one to spend the weekend with them, and enjoy activities such as boating, barbeques, and more. Many Australians stress the need for leisure activity during a negotiation process, because they would rather deal with a friend than a business colleague. Money is usually the motivation in a business deal, however in Australia, they focus more on strenuous work during the weekday with money being of little importance. One important thing to remember is that one cannot underestimate the casual business transaction. They tend to size you up to meet the stereotypical requirements of an Aussie, and this could be critical.
Sports is a good topic to discuss when unsure of what to say.
There are many informal rules to follow when visiting Australia. For instance, when riding in a taxi, you should sit up front with the driver for ease of conversation, and only sit in the back if someone else is up front. Do not litter, including throwing cigarette butts in the street, cleanliness is extremely important. Distance is interpreted differently between Australians and Americans. The city blocks in Australia stretch more than a half-mile, where here they range from fifty to eighty yards or so.