no waving
waving makes me less aero
no smiling, too much drag
riding is not supposed to be fun. it's supposed to be pain
no pain no gain

seriously though, don't know about qca but ic bike paths problem is the damn pedestrians who walk side by side taking the whole bike path. on your left doesn't work. bike bells don't work because they are busy yapping away on their goddamn cell phone or listening to their ipods. i need an airhorn or cow catcher or something. i want to be a bike path warrior! mad max beyond the bike path. i still ring my bell continuously though at least half a block away usually more just because i like riding my bike and ringing my bell!