novice rider wondering if there are some formal guidelines;
so your cruising to the shop to grab some milk or whatever, light up ahead is red and you notice another bike stopped in pos 1 at the light.
do you roll up to pos 3 right next to him like you would if you 'riding together'? or do you stay in pos 1 a bike length behind??
merge onto highway, unknown biker ahead in same lane going same pace as you... do you automatically go to pos 3 to fill out the staggered formation or stay back because you aren't 'riding together'?