Meaning
A face with one eyebrow raised and a monocle over the other eye, the stereotype of a fancy gentleman examining something closely.
It means looking into something carefully, being curious or skeptical, or acting posh as a joke. Detective talk, product reviews and fact-checking are typical uses. It differs from 🤨 by adding a sense of study or inspection. Example: “Let me read the fine print before I sign 🧐”.