Significados de dopey expression en inglés

"Oh!" The girl had wide, unblinking eyes, a round face, and a dopey expression.

"Of course I saw it," Mal said, his dopey expression evaporating into a cocky grin.

With their dopey expressions, twin-brain mentality, and iPhone addictions, they struck Emma as all fluff and no substance, the girl equivalent of low-calorie Cool Whip.