Following are a number of back-translations as well as a sample translation for translators of Proverbs 27:19:

• Kupsabiny: “A mirror shows how the appearance of a person is,
  like when the life/soul of a person is seen from how his behavior is.” (Source: Kupsabiny Back Translation)
• Newari: “Like a person’s face is reflected in water
  a person is known by his heart.” (Source: Newari Back Translation)
• Hiligaynon: “As you (sing.) can see your (sing.) face in the water, you (sing.) can also see your (sing.) being in your (sing.) heart.” (Source: Hiligaynon Back Translation)
• Kankanaey: “Like water in-which-you(sing.)-can-see your (sing.) face face-to-face, likewise also the thoughts of a person that can-be-seen in his fellow person.” (Source: Kankanaey Back Translation)
• English: “When a person looks in the water, he sees his own face;
  similarly , when we look at a person’s behavior, we know what he is thinking.” (Source: Translation for Translators)