How to make a signature look professional?

Ok...you looking at a lefty, and if you know anything about lefties.....its that they can't write:) BUT!!! A good signature has nothing to do with "Good Writing" but everything to do with expression. Think of flowing letters,big but not huge, and the most important...What letters do you want to stand out? The first letter of course, but if your name have a G,Z,S,T(you name it) maybe you should look at drawing attention to them. One quick idea for you to build off of is...Why do we call our signatures our "John Han"? Our signature is how we want people to see us. Are we perfect,wild,outgoing,pride,timid?....al… of thoughs things can all be see in a signature.