Are you talkative? Chatty? Verbose? Garrulous? Then you're probably famous for your loquacity!
Loquacity is a quality of being incredibly talkative. This word comes from a Latin word meaning "talkativeness," from loquax, "talkative." Your best friend's loquacity may be one of your favorite things about him; the two of you can just sit around and natter on all day long!