re: What screams "poorly educated"?

Has smoking been mentioned?

Btw, profanity has a weird fence line. Yes, it is trashy, but studies have also shown highly intelligent people tend to use it more often.

Tattoos are also misleading. The people that play it off well are typically notable on another level that has the trashy perception set aside.

Being obese is definitely a marker though.

Large flags flown from one’s vehicle.

Abundance of bumper stickers……even the “intellectual” ones.