Sirach 19:29

29 A man may be known by his look, and one that hath understanding by his countenance, when thou meetest him.

Sirach 19:29 In-Context

27 Casting down his countenance, and making as if he heard not: where he is not known, he will do thee a mischief before thou be aware.
28 And if for want of power he be hindered from sinning, yet when he findeth opportunity he will do evil.
29 A man may be known by his look, and one that hath understanding by his countenance, when thou meetest him.
30 A man's attire, and excessive laughter, and gait, shew what he is.

The Brenton translation of the Septuagint is in the public domain.