Negatively: Almost any clothing with more than a couple words of text.

Clothing with a prominent brand.

Clothing with right-wing political connotations.

Dyed blonde hair or hair dyed brown/black that should, obviously, be gray.

Tramp stamps. Japanese writing tattoos on non-Japanese. Face tattoos. Neck tattoos. Tattoos of pop culture themes.

Expensive cars. Dodge pickup-trucks. Harley Davidson motorcycles. Dodge Chargers. Teslas.

Police officers.

Positively: Normal clothing. Well-dressed but obviously not expensive clothing. ‘Funky’ style clothing. Clothing that would just look stupid on me.

Wildly dyed hair. Subtlety dyed hair that isn’t covering something up.

Tattoos that are, at least, fairly unique.

Glasses. (I don’t know, I’m prejudiced for people with glasses.)

Old women.

I could probably come up with a lot more. We’re all prejudiced in some way. It’s the things that we’re prejudiced about and how attached we are to those prejudices that define us.