MP etiquette for war...

[parone]

the clueless newb is back

i prob spelled etiquette wrong...

in my first game, and wondering how it works, declaring war?

i have three neighbors,and have est. reasonable diplo with all. its early(turn 10). what happens later if i want to declare? or, what should i expect from them?

will i just boot up a turn and have a bunch of giants/tigers/seraphs land in a province and they say "war!"

do i have to declare b4 attacking?

i really have no idea. i know there are no set rules, just don't want to come across as a major Dbag in the game, as the other players have been very cool in helping me get started in MP.

thanks for any advice.