Goblins are born only to destroy: rob people and take the inhabitants of the magical lands hostage, but above all, ensure your own survival.
Born in a cave among ten of your kin, you realize that you suffer from an unbearable thirst: a thirst for profit and violence. While humans develop, trade, and find new friends for future adventures, goblins must cling to the faintest hope of survival. Taking anything that is not nailed down, stealing whatever you are not allowed to take, and glaring at anyone who does not look green and small are the central tenets of every goblin... but do they all follow them?
At the same time, you must understand that even when playing a role as violent as a goblin, killing without cause is not allowed. An attack against you, for example, may provide a reason to kill.
Like everyone else, goblins possess reason, so you may encounter entirely different individuals. Most goblins are small, unscrupulous creatures driven by animal instincts, but even among them there are exceptions: kind and peaceful goblins who are trying to understand a world that treats them cruelly.
Goblins themselves have little value: they are small and disobedient, and if you let your guard down, they may drive a dagger into your side. They do, however, possess one exceptional treasure: their ears. The ears themselves are not especially valuable, but they are an important and hard-to-obtain ingredient for alchemists. They may also be valuable to trophy collectors, who can make necklaces from them.
To goblins, other creatures are merely scum to be treated however they please, so why not use them for their own purposes? By pouncing as a pack, goblins can capture one or two prisoners, and they can always decide what to do with them afterward.
It is important to understand that another person is behind the screen. Forcing them to sit in a cage for an hour and then spend another hour working with a pickaxe is unacceptable. Keep this in mind, and try to add variety to other players' gameplay rather than ruin it.
Do not forget that erotic roleplay of any kind is forbidden.
Even a homeless person has a cloak to shelter from the rain, so goblins also have something with which to fight back.
EquipmentObject
Description

Curved Goblin Sword
It may be rather small, but it cuts well. Few people would enjoy feeling poison in a freshly opened wound, either.

Wooden Goblin Armor
Not especially sturdy armor, consisting of a couple of planks tied together with fibers.

Goblin Leather Armor
Decent armor, especially considering that it will fit only a goblin. To obtain it, you must either know leatherworking or interact with humans.

Goblin Iron Armor
Good armor, even if it looks rather small. Anyone would be frightened by a goblin wearing it, let alone an entire pack in such armor. If you can find an anvil and forge and someone has the necessary skills, why not make a suit?
Goblins are not a serious role, and you can roleplay their behavior however you like: steal and take people hostage, or try to compromise, meet humans, and become a full member of society. Most importantly, remember that the people on the other side are just like you.