back to topic, yes there seem to be alpha females in most courses, i call them "keen beans" and if you have 2, one is the "team leader". And by the end of the year, everyone will know them, and most will hate tem, but they do provide entertainment and answer questions when no one else will.
And there is always someone who thinks they know more than the lecturers, mature aged students are particularly bad at this, and often get into arguments that are way off topic, and as stupid irrelevant question in lectures and are uber annoying!!!
I think UAI has nothing to do with common sense, you can get a hundred UAI but not be able to find your way into uni, have no idea how the train system works, not know how to talk to ppl, not be able to make it in the wide open world. Or you can get a * for your UAI but be so charming and persuasive that u end up as the CEO of a multimillion dollar company. The HSC is not a measure of ones worth.