Welcome to M.E.! I'm not sure where to start, so I'll just offer soome suggestions...but please feel free to post any questions you specifically have.
Make sure you do the tutorial, it explains alot of the basic commands and gives you a good feel for the general play of the game.
Do not rush through things, take the time to appreciate the beauty. People are always in a rush to get thier trade skill maxed out, or thier level, which is fine...but you will end up missing out on alot of things the game has to offer.
Dont waste money buying gear until you're higher level (25+ or higher imo). You will rarely have a weapon or other item more then a few levels while starting out, so they change quick.
Pick a trade that seems 'fun' to you. Not the one that you think makes the most money (which is Explorer btw, just in case you are interested in making money). Nothing gets boring quicker then a tradeskill that you cant stand.
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Things I sometimes play...
"What do you want to be when you grow up?"
"I want to be a unicorn!"
"Awww, why's that?"........
"So I can stab people with my face."