While talking to someone, remember that people like to talk to people who can receive and share information simultaneously. If you dominate the conversation without giving any stress to what the other person is saying, that will end the talk very quickly. On the other hand, if you only listen and don't provide any intelligent or reasonable contribution to the discussion, people will think of you as someone not worth their time talking to.
While having a conversation, make sure that you completely understand what the other person is saying before making any remark on it. Misunderstanding or even partial understanding of somebody's statement could cause a serious social error. It is always advisable to use repetition in conversation, both to clarify your statements and also to understand what the other person meant by his words.
Examples − "Let me make myself clear here, so that everybody has understood exactly what I meant to say.", "If I understood you correctly..."
It is also important to keep summarizing the content as the conversation becomes more detail-oriented. There are times when a lot of facts are introduced which need to be kept in mind to understand the context of the discussion. Whenever you feel that the details are getting slightly difficult to understand, it is best to paraphrase and try to summarize the entire content so that any discrepancy can be addressed.