[quote=@Sir Parzival]
Alright, so I have my character ready, I just don't know how to do the thing that DeadDrop and ElRey have done, excuse me for being new to this, I just don't want to be the only one who's posted it without the cool drop down bar. 
[/quote]

Just type [cider]blablabla[/cider], except "hider" instead of my great name. Then you'll get this;

[hider]blablabla[/hider]

You can also type [cider=borkborkbork]blablabla[/cider] which will end up as;

[hider=borkborkbork]blablabla[/hider]

If you look at the bottom of the page were you're writing, you'll see a headline called "Formatting Cheatsheet" and a toggle button. Just press the button and you'll get a guide on BBCode. There's also [url=https://www.roleplayerguild.com/forums/37-articles-guides]an entire forum section[/url] sporting various guides on fluff stuff and other things, if you're curious.

You can also simply quote someones post (by pressing "Quote", that is) into your replybox to see what BBCode they've used and how, which is why DeadDrop's post looks like a fucking mess when you quote it. :)