The face’s muscles work as a unit, contracting together to produce a cohesive expression. The eyes have no more power over the face than any other part of it, and they do not steer the direction of the body; instead the body remains still as the head gesticulates. The eyes may drift to the sides on occasion, but are reeled back in to the direction the face/body is facing.
This signal reveals a psychology that strives to keep a cohesive framework for their own beliefs, and has a level of resistance against too much random information, or the movement of the world. For this person, everything circles back around to their positions or causes, and information is used to better inform that position. Raw experience isn’t usually pursued for it’s own sake.