How do I change my signature?

[Maleficent2B]

I know this is probably an easy thing to do and I'm just being a doofus, but I cannot figure out how to update my signature! It a couple of years old and a few trips behind! Thanks!

EDIT! Nevermind, figured it out. (Always have to ask for help after struggling with something for a while before I actually get to figure it out on my own. That's just my MO!)