Knowledge is knowing that tomato is a fruit.
Wisdom is knowing not put tomato in fruit salad.
Wisdom comes from good observation. Good observation takes focus and intention. So be quiet and observe. There is far more than what meets the eye.
When you are with people, there is no need for words or explicit communication to sense what's going on. Quiet people pick up on the subtle hints without any problem. It's those ever talkative people who miss on all clues both subtle and explicit and commit blunder after blunder. See that for yourself in parties or meetings. People find such people simply repulsive. Some parties end prematurely because such people dominate the scene. Thank God if you are spared from such parties.
That's why they some people are wise and others are otherwise. No doubt.
People who have knowledge but no wisdom are like empty pot. Empty pot is not really empty. It is full of air. Merely knowledgeable people are like such empty pots with full of hot air. Painful to deal with.