Some people work quietly but never expose themselves. Such people also may not get the required weightage when their performance is evaluated. So we should present our achievements to the people to whom we report and to the other people in our department. Otherwise, somebody else may get the benefit by projecting your work as theirs.
There should be a balance always. Project your good work so that people will understand you correctly. At the same time don't go on talking without any point. People may consider you as a man of words only but not as a man of actions. Be cautious.
My nephew is an engineer in KSA he went to Japan for 2 months on behalf of his company , he shared his experience with me that Japanese don't talk when they are involved in work, even at other places he saw them doing some work instead of gossiping on politics or sports.
Some people are too much talkative. Where ever they are their tongues do not take a break once they start talking and you have to tolerate their humbug. I prefer to ignore these people , merely changing the topic does not stop them. It wonders me how energetic they are in conversation because too much talking exhausts energy but they keep on talking for hours without exhaustion.
Knowledge is power.