Give examples from Australia and also give examples from other countries because that is not only useful for international students, it's useful for Australian students as well. Try to emphasise what dimensions or concepts of the subject matter are generic and really international, and then how the applications could vary from location to location.
Give examples of the things you might believe they could be watching or reading in the popular media, and that you might even be following as well. You might want to relate things to humorous events in your own life. All of this done professionally and within reason can help create connections and trust between you and the students.
Be clear about what concepts, language, examples you want students to understand. When using PowerPoint slides be attentive to number of words, lines on the page, choice of vocabulary, and layout so that the hierarchy of concepts is very clear. Use the functionality of Powerpoint to assist students' understanding of which is the main point, subpoint, and sub-sub-point. Sometimes international students can get lost in the hierarchy.
When presenting a lecture, make a conscious effort to use the same language that is used in the points on the slide. The students may be confused if there are discrepancies between the written and spoken language.
Consider recording lectures and uploading them as streamed files that can be downloaded in the future - it's very useful for students to revise, or to listen to it again from a different perspective.
Be aware of the amount of time it takes international students to write down notes, so pace the delivery of slides and verbal explanations accordingly. Research shows that if students are not engaged with the lecture, they are less likely to pick up what you're talking about. A good compromise between expecting them to write copious notes or giving them the complete lecture notes is to have gaps in the lecture notes for them to fill in. Pay attention to what aspects they are expected to fill in and what aspects will be provided.
Let students know that you recognise the diversity of the group and that you value their presence, their different perspectives, and their contributions. Encourage them to find examples from their own country that are illustrative of particular concepts or behaviours, so that all students can learn from and about each other.
Avoid using outdated or inaccurate examples which may convey inappropriate cultural and national stereotypes. Cultures and nations change and inappropriate examples may reflect historically based and negative stereotypes, perhaps wrong in their historical setting and grossly outmoded by present standards. One example of this might be describing certain countries pejoratively as 'third world'; this may be a misrepresentation of their current status and how they see themselves. It could give offence best avoided by using a phrase like 'other parts of the world'.