Simi,
I'm pleasantly glad (er... ;-) ) that I come across your query here, cos I was just thinking about it myself... I was reflecting on my past 22 years of working in my career and there are so many lessons I've learnt about attitudes that one should adopt at the office.
Since you are new, it is best that you adopt an attitude of learning just like a dry sponge and try to absorb as much good work practices from seniors in the company and at the same time blinding yourself to the bad attitudes you will definitely come across or see in the office.
Humility and graciousness as a "newbie" in the office is also important. You should show one and all in the office that you are someone who respects people - their thots, beliefs, values and decisions - regardless of their age or position in the company. People are also observing you and you'll never know when the boss is looking - I'm not suggesting that you should only work when the boss is looking! You will never know when word will get back to the boss by peers or subordinates or superiors of things they see about you!
Be flexible and adaptable and willing to take on any challenge that is placed on you. This way, you will be able to learn and prove that no challenge is insurmountable for you. This is especially so for those "dirty" tasks which no one seem to want to take on - maybe it is tough or doesn't seem to have that glamour or perhaps thankless task. You will learn more and you will grow faster by taking on challenges. Also, bosses will see that you are a one-of-a-kind and can be relied upon to take on challenges - bosses like these kinda people!
There are so much more I can share, but then, these to me are important and brought me to where I am now...
Try it and see if it works!
Good luck!
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Kayceezharold
Earn As You Learn The World Thru Kayceez Eyes