how do i get a "green" items

i have heard from a guy in the game you can get "green" items.
he sed it where good wepons whit max damage.

he only didnt tell how to get them

Some bosses can drop them when they are killed.

So, look at guildwiki which green do you want, and kill that boss over and over until he drops it.

this url from wiki will help you:
http://wiki.guildwars.com/wiki/Unique_item

What a ass,anyways i see you are a Ranger,i have a green bow you can have free if you want ,pm me in game and i'll meet you and give it to you.

IGN-Optimistic Bear

I think green items are overrated. They drop really rarely and besides the nice weapon skin you can recreate many. Some bosses are too annoying as well to try for greens from them (aka Realm of Torment bosses).

Greens are ok if you happen to find them. But weapons you just happen to pick up work too. This game is skill based.

Most important, don't overlook collectors. Go to the wiki, look up collector. Select the area you are in for general collectors. Look down the list and find a weapon you want. Use wiki to find out what drops the items the collector wants. Much easier than hitting some boss endlessly for a green that is going to be maybe 5% better.

the easiest way to get em is just to go to kamadan ad1, and buy them for 1k-2k each since they're really not worth that much.