How To Add a Signature Line?

Subject says it, guys.  Can't figure out how to add a signature line here.  A little help, oh ye Mens Forum gurus? Thanks.

just make sure you are logged in, then click on "User Settings" in the little light blue box on the left of this screen - remember when that you only have 2" of space, it will let you put in more, but the bottom will appear cut-off in your posts if you go over that limit...Let us know if you have any more questions!

Thanks Mike!