Ways of a Fool: He:

Is conceited.

Proverbs 12:15  

The way of a fool seems right to him, but a wise man listens to advice.

Proclaims foolishness.

Proverbs 12:23  

A prudent man keeps his knowledge to himself, but the heart of fools blurts out folly.

Parades his own folly.

Proverbs 13:16  

Every prudent man acts out of knowledge, but a fool exposes his folly.

Rages and lives in sin.

Proverbs 14:16  

A wise man fears the LORD and shuns evil, but a fool is hotheaded and reckless.

Quick tempted.

Proverbs 14:17  

A quick-tempered man does foolish things, and a crafty man is hated.