The rules are pretty much the same as anywhere else I've been, and since this is not LA at rush hour, people drive quite well here, to too crazy or wild. You need not be worried. I recommend that you adhere to these speed limits, even if everybody else gets pulled over. Police radar controls everywhere at all times of day and night. Lawrence has plenty of stop signs to help you drive slowly.
Orientation is simple.
See getting around Lawrence . Most cars here are automatics. P is for park, R for reverse, and D for drive. Don't concern yourself with N, or D2 etc. You won't need them.