Dry like a martini in the Sahara, WLRN-FM (91.3)'s Andy Wagner has become a local favorite thanks to his unflappable British calm and quick wit. A world traveler and ten-year veteran of the BBC in London, the Bristol native landed in Miami on assignment in '99 and started with the station in late '02. As local host and producer of the daily All Things Considered program (4 to 6 p.m.), Wagner typically elicits laughter from his cohosts by tinkering with the segues from news to traffic reports from the "D.O.T. 5-1-1 Traffic Center." One of Wagner's recent transitions came after a story on keeping livestock safe, which he followed by asking traffic guy Mike Millard to "take stock of the afternoon commute." Droll, innit? It seems Wagner's goal is to get Millard -- a salty old cur, by the sound of him -- to burst out laughing while delivering the traffic report. Balanced by an affable trustworthiness as he delivers the news, Wagner's sense of humor makes a normally dull, frustrating part of the day a little more tolerable.