He could have been. The converse is possible also. Demeanor can be independent of motive or it can be a function of layered emotions. It can also be deceptive, meant to mislead. Or it can be a true and accurate reflection of one's motives and feelings. Demeanor is in the eye of the beholder.

Michael's demeanor during his conversation with Geary was calm, cool, and collected. For that matter, so was Geary's. Yet those demeanors masked a seething contempt one had for the other.