In Quick Reply you can type in the code, if you know it. Usually the bb code recognizes the standard text strings like : ) :smile:
The others are usually a word with a : in front and back like this :code:
:rofl: "rofl"
:grrr: "grrr"
:bravo: "bravo"
Oh, and by the way, if you hover your cursor over one it will tell you the code.