The phrase "cast coquettish glances" refers to giving sly and flirtatious looks. There are several synonyms that showcase the same manner of eye movements. To make this phrase more intriguing, alternatives such as batting eyelashes, fluttering eyelashes, winking, and ogling suggest the desire and playfulness that coquettish glances convey. Other similar phrases can include "throwing seductive looks," "shooting a come-hither stare," "giving smoldering gazes," and "bestowing flirty smirks." These synonyms convey a sense of interest and allure that captures the attention of the intended recipient. Using these synonyms instead of the original phrase can add variety and depth to writing and communication.