you may know or not but personally I have noted that silent people get more attention and people respect them.. So silent people get more value as compare to talkative person.

you may not know how to use it and earn value from others. so follow this. During crowd when every one just talk, so get more attention if you are silent. People will wait to listen to you only really..
Also during argument when some one just shouting , you will see your value of silence there....its cool..

This is also true that silent mood people are more intelligent and they have fast mind as compare to talkative..
If you are silent every one will want to talk with you and listen to you, because silent people only say unique and amazing words, this my own experience dear...
People  trust more on silent people as they are serious. People will more attract to you if you not talkative on stupid things.