Quoting some resources..
Saint Benedict laid down twelve degrees of humility:
1. Holy fear of God, walking in the Divine Presence.
2. Renunciation of our own will.
3. Ready obedience.
4. Patience in all sufferings and injuries.
5. Telling our spiritual director or our superior all our thoughts and plans.
6. To enjoy all humiliations, to be pleased with the worst jobs, poor clothing, to love simplicity and poverty.
7. To consider ourselves less than everyone else.
8. To avoid all love of singularity in words and actions.
9. To love and practice silence.
10. To avoid dissolute laughter and jokes.
11. Never to speak in a loud voice and always be modest in our choice of words.
12. To be humble in all of our actions.
He adds that divine love is the payment for sincere humility and promises perfect chastity to anyone who follows these 12 degrees.
St. Bernard of Clairvaux wrote on the subject, the translation of his rendition of St. Benedict's 12 degrees is this, in reverse order as a ladder:
XII. A permanent attitude of bodily; and spiritual prostration.
XI. The speech of a monk should be short, sensible and in a subdued tone.
X. Abstinence from frequent and light laughter.
IX. Reticence, until asked for his opinion.
VIII. Observance of the general rule of the monastery.
VII. Belief in and declaration of one's inferiority to others.
VI. Admission and acknowledgment of one's own unworthiness and useless-ness.
V. Confession of sins.
IV. Patient endurance of hardship and severity in a spirit of obedience.
III. Obedient submission to superiors.
II. Forbearance to press personal desire.
I. Constant abstinence from sin for fear of God.
And adds: THE TWELVE DEGREES OF PRIDE
TAKEN DOWNWARDS
I. Curiosity, when a man allows His sight and other senses to stray after things which do not concern him.
II. An unbalanced state of mind, showing itself in talk unseasonably joyous and sad.
III. Silly merriment, exhibited in too frequent laughter.
IV. Conceit, expressed in much talking.
V. Eccentricity attaching exaggerated importance to one's own conduct.
VI. Self-assertion holding oneself to be more pious than others.
VII. Presumption readiness to undertake anything.
VIII. Defence of wrong-doing.
IX. Unreal confession detected when severe penance is imposed.
X. Rebellion against the rules and the brethren.
XI. Liberty to sin.
XII. Habitual transgression.
For which we have a drawing: