In fact, if you want to make such a change, you should first of all overcome your own psychological problems, because many times the words are due to their own hearts are afraid, afraid to say the wrong thing is not confident enough, I do not know what to say to others, afraid of others will not be accustomed to, think too much, so simply do not say it, or to say less.
Sometimes it is still necessary to master some of the skills of speaking, this can be more books about communication, this is also a good help, and then is bold to practice!