TRUE.
We all live in a social circle and our opinions can have a relative influence on others. However, in addition to expressing opinion, it is very important to know how to listen. A person who has a good listening ability can better understand the issues that infringe people. This can be a differential when giving an opinion, because you can have a more realistic dimension on the subject and propose a suitable solution. Of course, if you are assertive, people will realize this ability and their influence tends to increase.