Greetings Rodvik and welcome to SL! No doubt your policy at EA had to be the games had to be played by the employees to understand them, and if that's the case the fact you're carrying this over here is a good sign. I do hope though you make going Inworld a regular occurrence and not just do it for the first few weeks and then drop it, thinking you know everything you need to know. The one constant within SL is constant change.
Many Residents have already given you great suggestions, but I'll add a couple more. One, please make a regular point of visiting the growing music scene in SL with the idea this may truly become the future of the music business itself, where small to mid-level artists who can't afford major national or international tours could reach wide exposure and ultimately sales of their recorded material. But not if the clubs where the artists perform continue to experience such extreme lag the sims crash on a regular basis with even half-full venues. There are certain very popular venues in SL for music I simply will not visit anymore because their lag problems make it impossible to enjoy the music.
The second suggestion I have is to spend some time living not just as a noob, but as someone who does not have the skill to build or the creativity to make clothing to sell and see how it is they learn to earn Lindens. While I'm not a prude and certainly do enjoy my time in Zindra and adult clubs, there should be more opportunities in SL to earn Lindens on a regular basis other than working as strippers and prostitutes. Not everyone has the RL equipment available to DJ or perform in clubs, and either gaming or camping can be very inconsistent. Therefore, LL should be exploring and encouraging more opportunities for Residents to be able to earn Lindesn in 'clean' occupations, especially now that teens are Inworld.
With that being said, I hope to see you around SL somewhere. If you want you could potentially IM me (or others) Inworld and we can give you suggestions on where to have a good time.