Cockiness (7)
(Other definitions for swagger that I've seen before include "Walk proudly" , "Proud, pompous gait" , "Lofty proud gait" , "Blustering arrogance" , "confident gait" .)
(Other definitions for attitude that I've seen before include "Way of regarding something" , "Studied posture or opinion" , "Way of thinking or bodily posture" , "Truculent behaviour" , "Pose; point of view" .)