Hey there, welcome to Singapore. Short notice but you might want to come along to a gathering at the Fullerton hotel this evening. It's organised by internations group - apparently around 500 people from 50+ countries pitching up for informal drinks. There'll be plenty of aussies there i'm sure so you'll be in good company.
You might need to register your name on the site first but otherwise just come along to the fullerton from 7.30.