assertive
acting with confidence and force; sure of one's self
brazen
extremely bold, shamelessly rude
complaisant
wanting to please, cheerfully obliging
docile
gentle, tame, easily manageable
flamboyant
showy, flashy, dramatic
intrepid
fearless, unwavering courage
mellow
eastgoing, relaxed and unhurried
pacific
calm, of a peaceful nature
strident
loud, harsh, grating or shrill
unabashed
not embarassed, composed