The simperer at the back of the room tried to charm everyone with a nervous, syrupy smile.

The simperers in the audience ruined the speaker's serious message with their constant, insincere smiles.

Simpers filled the gallery, their fixed smiles making the genuine laughter seem foreign.

She tried to simper out a compliment to the stranger, but it sounded insincere.

She simperingly agreed to the proposal, hiding her true doubts behind a practiced smile.