לֹֽא־תִרְאֶה֩ אֶת־שׁ֨וֹר אָחִ֜יךָ א֤וֹ אֶת־שֵׂיוֹ֙ נִדָּחִ֔ים וְהִתְעַלַּמְתָּ֖ מֵהֶ֑ם הָשֵׁ֥ב תְּשִׁיבֵ֖ם לְאָחִֽיךָ׃
你若看見你弟兄的牛或羊走失了，不可轉眼不顧，務要把牠們帶回去還給你的弟兄。
Bartenura
Which is undignified to pick up. Something that is degrading to him. The Torah said "And you hid yourself from them", [implication is] that sometimes you can hide, for example an elder and it's beneath his dignity.