Enchantress is extremely child-like in nature, often seeking fun in everything & wanting not much more than just that. As such, she has plenty of child-like mannerisms, though with a small sense of "royalty," sometimes seeing herself as a princess of sorts or similar.

Having the mannerisms of a child, Enchantress is either showing plenty of energy in her voice, some sorts of curiosity, or childish fits when portraying negative emotions.

You can find a quick preview video of the character here.