כַּ֭מַּיִם הַפָּנִ֣ים לַפָּנִ֑ים כֵּ֤ן לֵֽב־הָ֝אָדָ֗ם לָאָדָֽם׃
Kung paanong sa tubig ay sinasalamin ng mukha ang mukha, gayon din ang puso ng tao sa kapwa tao.
Rashi
is the heart of a man to a man his friend. According to how much a man knows that his friend loves him, so he will show him his face.