pretty is as pretty does

pretty is as pretty does

proverb One's attractiveness should not be used as an indicator of kindness or goodness. He's handsome but a bit of a jerk. As usual, pretty is as pretty does.
See also: does, pretty
Farlex Dictionary of Idioms.

Pretty is as pretty does.

Prov. It is more important to treat people well than to be good-looking; just because you are good-looking does not mean you are a good person. (Said only of girls and women.) Janice may have a pretty face, but pretty is as pretty does; the way she behaves isn't pretty at all.
See also: does, pretty
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • sit pretty
  • sitting pretty
  • pretty
  • pretty much
  • pretty much/well
  • in a pretty pickle
  • pifted
  • pretty please
  • Pretty please?
  • pretty penny, a