I ride 7.5 miles of 25,30 mph, busy city streets. I obey the traffic laws as if I was a car except for one curve where I will speed a little. I signal all lane changes and turns. I stop for pedestrians. I find that cars seems to notice you more if you are going the same speed as them and/or you respond like a car. Perversely, bicycles notice seem to notice me less.
I have flashers front and back.