Many users have a signature under their profile. How do I add that?
Go to the "menu bar" (above the navigation showing AARoads Forum > Meta > Suggestions & Questions, but below News) and select Profile.
In the left-hand column, there are two headings: Profile Info and Modify Profile; select Forum Profile.
Scroll down to Signature, and select Change profile in the bottom right when done.
Just a heads up: if you intend to use an image in your signature, it can't be taller than 100px, nor wider than 500px.