Synonyms for Comportment:

n.

action, be. attribute (noun)
mien, bearing, presence.
behavior (noun)
presence, practice, manner, countenance, carriage, bearing, deportment, air, demeanor, way, tactics, conduct, behavior, guise, method, procedure.
comportment (noun)
mien, bearing, presence.

Other synonyms:

action. Other relevant words:
air, be, presence, action, mien.