Okay. Let's go fam!
First, you'll want to create a new page called 'User:YOURUSERNAMEHERE/sig'. This will be a sandbox page where you can prototype your signature.
You can see mine here: User:Master Jand/sig. Copy the SOURCE MODE text. Now make your own Sig page. Remember to go into SOURCE MODE. Paste it there. Then, replace all the 'Master_Jand's with your username. Replace all the '#B29670' with the color of your choosing. (Easy way to find the computer code for your color: HERE. Replace '4th Wall' with whatever you want to call your message wall. Most just call it 'Wall'. It should look like this when your finished:
Copy what you have in your Sig. Click on the arrow next to your profile image on the top of your screen. Click 'My Preferences'. Next, scroll down to 'Signature'. Replace the generic signature you have there with the pasted code. Scroll down to the bottom of the page and save your changes. Viola! Now, at the bottom of comments and posts, remember to enter down a few times, then type 3 tildas, or these things: ~
Thanks for listening!
- ♚丁and♛ (4th Wall)