"Smirk at" is a commonly used phrase to convey an expression of disdain or amusement. However, there are many synonyms for this phrase that can be used to sound more creative and diverse in writing. Some alternatives to "smirk at" include snicker, sneer, scoff, deride, jeer, or mock. Each of these words has a slightly different connotation and can be used to convey a certain tone or feeling. For example, "snicker" may be used to describe a more subdued expression of amusement, while "sneer" may be used to convey a contemptuous or condescending attitude. By incorporating synonyms for "smirk at" into writing, one can add depth and nuance to their language.