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The clue is this: walking up to avatars and asking, "Hey! Hi. How can I get a job?" marks you as a real newbie - a clueless newbie to boot, actually. Which is okay, we were all newbies once, and no one is going to hate you for asking.
Once you complete Orientation Island and teleport onto the main grid, you'll spend some time looking around and then you'll want to go places.
As with any specific place and time, there are traditions, local phrases and customs, and manners. There are also things that are really annoying to other players (though you might not know that at first, until it happens to you or you have spent many hours in world.)
The Second Life universe is vast. It can seem overwhleming at times.
Second Life® is divided into regions called sims, regions, or islands (in this sense, even if the land is not bordered by water anywhere, the region is sometimes called an island). A region is about 16 acres large, or 65,535 square meters.