One of the great things about a sales career is that you don't need a college education or a PhD to master your profession, but you do need to have a few basic skills to be not just competent but great.
Perhaps the first skill that you need is to be an effective communicator, and this is more than just simply talking. You have to know some of the key elements of persuasive speech.
Tip one: practice your sales presentation in front of a mirror everyday. You probably should even write it down. There is tremendous power in being able to speak smoothly and confidently, and practice is one of the best ways to do this.
Tip two: join a speaking club. One notable organization is known as Toastmasters, which is a group that provides instruction and constructive criticism on all types of communication. They work on impromptu speeches as well as prepared speeches which can help a salesman polishes his communication skills.
Tip three: read a lot. By filling our brains with word tracks and information does wonders for our ability to communicate. It doesn't matter if it's about your chosen career or good book of fiction. Either way, reading will help.
Tip four: monitor your pace of speaking. You do not want to talk too fast or too slow, so try to make sure that you develop an easy pace to listen to. One source to try and pattern are the news anchors. They have a steady and deliberate way of talking that is pleasant.
Tip five: keep track of your crutch words. Many people have a tendency to interject meaningless words into their sentences, words like "uh" and "ah". One trick is to put a rubber band around your wrist, and every time that you say a crutch word snap the rubber band to give you a quick reminder to stop saying.
These are just some basic tips and communication. While there are some definite techniques and methods that you can learn, it all begins with good communication.