There are lots of classes offered out there to learn / improve your Bicycle Riding Skills. Ditto for a little Bicycle Road Etiquette.
Ready for really compelling reasons to improve your skills as a rider? Please read the SF Gate article:
'Bicyclists were twice as likely as drivers to be at fault in the nearly 2,000 collisions that killed or severely injured Bay Area bike riders in the past decade, an analysis by The Chronicle shows.’
Smart Solution: Bicycle Safety Classes in the Bay Area