Communication involves more than just talking. Within organizations a number of obstacles to communications occur. It is important to remember that labor may also employ the same terms so that in effect a double obstacle may exist. A new employee, in particular, may not understand the jargon or technical language of the industry or the company. When company or organizational goals are not in sync with individual goals, we may see a communication breakdown.
Communication skills are a package of many different skills.
Improving communication skills involves sharpening all these skills. This might indicate that he should listen twice as much as he talks. Try to find out what the speaker really means. If you understand, say so. If you do not understand, ask for more information or clarification.