Final answer:
To remember 'facetious', which means comments or behavior intended to be humorous but possibly inappropriate, imagine a person smirking. This image best captures the essence of facetiousness, unlike images of someone standing up or a car accelerating.
Step-by-step explanation:
The word facetious is often used to describe comments or behavior that are meant to be humorous or witty, but can sometimes be inappropriate or not taken seriously due to the context. To remember the definition of the word facetious, it would be beneficial to envision a person smirking. A smirk conveys a sense of humor, albeit potentially sarcastic or insincere, aligning well with the word's meaning. Imagery of a person smirking captures the essence of a facetious remark or attitude - one that's playfully humorous but not meant to be taken entirely seriously.
While considering other images, a person standing up from a seated position or a car accelerating while driving do not inherently depict the concept of humor, joking, or inappropriateness, which are intrinsic to the meaning of facetious. Therefore, a person smirking is a much better representation of the word's definition and would help someone remember what facetious means.