To openly display or make known one's belief, value, emotion, or sentiment. Most commonly seen as "wear (one's) heart on (one's) sleeve," which comes from Shakespeare's Othello. Love him or hate him, Larry always wears his heart on his sleeve, and you always know exactly where he stands. My father was always very closed off regarding his feelings, so when I had kids, I made a point of wearing my love for them on my sleeve.