simper

每次部门主管在会议中点名叫他时，那位新实习生都会紧张地傻笑。

The new intern would ___simper nervously every time the department head addressed him by name during meetings.

她对着咖啡馆对面那个陌生男子故作羞涩地假笑，每次他回望就低头看自己的咖啡杯。

She ___simpered coyly at the stranger across the café, glancing down at her coffee cup every time he looked back.

手上还拿着打碎的花瓶碎片，那个男孩只能怯怯地傻笑，盯着地板不敢抬头。

Caught red-handed with the broken vase, the boy could only ___simper sheepishly and stare at the floor.