Etiquette on Texas Highways from yesteryear
This is not in any DMV handbook but this is what it means.
When on the back roads and the car in front of you moves over the the shoulder you are supposed to pass on safely by in the lane your currently in swinging a bit to the left if on comming traffic permits, AKA isn’t present.
Once you’re passed raise your hand up and give a nice wave.
Got it?
Next time you are you holding up trtaffic kindly do the same.