I feel like I can usually guess someone’s politics by looking at them. Muscular men, for instance, tend to be more right-wing and skinny men tend to be more left-wing.
A friend says: This is similar to the use of stereotypes in jury selection.
You cannot always be certain but stereotypes are true for a reason; a large number of persons of that type (anything that can be ascertained through observing someone be it race, ethnicity, religion, body type) share that characteristic.
I remember in the late 60’s and early 70’s it was easy to assume someone held a particular group of beliefs if they looked and dressed like a “hippie.” Then more and more non hippies started wearing their hair long and dressing more in that style and often they didn’t share those beliefs.
Since 90 percent of blacks support the democrats, that is an easy call. You only have a 10% chance of being wrong and you can probably narrow that down by observing their personal appearance, carriage, grooming, way of dressing and way of speaking.
