Notice how the bicyclist does not weave in and out between parked cars. Many cyclists think they should get as far to the right at all times.  What I believe is the safest way to ride is staying 3ft from parked cars, and towards the right in the travel lane. This benefits both the driver and cyclist, weaving and bobbing only make a bicyclist less visible, and holding a line makes passing a bicyclist easier for the driver.  Be careful not to give up too much of the lane, you want to discourage drivers from sharing a lane with you when it’s too narrow, particularly if it’s a 2 lane roadway.  Don’t get squeezed.  Share the road, take the lane!