How do the northern and southern coastal plains differ

The northern Coastal Plain extends from the Neuse RIiver basin to the Virginia state line, and encompasses an area occupied during the Contact period by Algonkian- and Iroquois-speaking groups. The Southern Coastal plain in a asubtopical, low-elevation ecoregion situated between the Gulf of Mexico and the Atlantic Ocean.
  I hope it helps!

Iwould say d. eye contact and body language because you aren’t using any spoken communication. hope this : )