Greetings/Tourists

Today a tutorial on Australian greetings/phrases I have encountered:

"Cheers" - sort of like goodbye, but with well wishes
"No worries" - "you're welcome," although it seems nicer
"Ta" - apparently "thank you" but I've only heard it, and always hear it, when I check books out at the VCA library
"Take away" - to go

I've yet to hear a "G'day mate," except from Americans writing to me, and then they write "Gooday mate!"

I think it's more a rural, or at least, non-Melbourne thing to say. Speaking of non-Melbournians...

My school is just past downtown and to get there, I get off the train or tram at the main centre of downtown and pass a bunch of touristy-type places like the bridge in the picture from the previous post, the "arts centre," and the National Gallery of Australia. This is a very pleasant walk, but I have noticed that the tourists jump out at you, not only with their more pronounced Australian accents (more of a drawl) but by their clothes.

There must be some sort of international tourism guidelines as the following characteristics seem to apply worldwide:

People in the city: stylish, attempt to look more vertical, tend to wear blacks, grays, or more subdued colors, walk purposefully while looking ahead or down

Tourists: not so stylish, have resigned to look more horizontal, tend to wear khaki shorts (I think this is the primary requirement), pastels, and big straw hats, walk haphazardly looking up and around and to someone, anyone for help

I have been asked for directions twice and was utterly unhelpful. I did help a woman validate her tram card, although it doesn't matter, because NO ONE validates their tram cards. I was pretty vigilant about it at first, but natives seemed to look at me like, "What? You think you're so great because you validate your tram card? Who do you think you are? No one's gonna check it."