Not Australia, but my Indian friend pulls really well. He's goofy, chill, and confident. A lot of Indians make the mistake of believing that girls want the super serious stoic personality, or some nice guy/provider that dresses in business attire, when really it'd be better for them to play the role of a guru/no judgment type of guy. While being stoic is important, you shouldn't entirely focus on closing off your emotions. Be the fun, irritating, older brother these girls have always wanted. Create your own look/style that sets you apart from all the other pajeets who just try to imitate white people and fail at it. You're not white, but you're not brown either, you're you.
When people here say stoic, they mean that you shouldn't let life get you down, or complain when things get tough. Not "be a blank concrete slab" that all these other guys try to be. You can be excited, you can be outgoing, you can be fun and mess up (sometimes) and brush it off (without self deprecating).