After they’ve been talking for a while, the Cambridge graduate says to the Oxford graduate,
“You know, I can tell you’re an Oxford graduate by your charm, your intellect, your
sophistication, and your worldly wisdom.”
The Oxford graduate smiles and responds,
“Thank you. You know, I can similarly tell that you’re a Cambridge graduate.”
The Cambridge graduate also smiles.
“How nice. What was it that gave me away?”
The Oxford graduate takes a sip of his martini and explains,
“Well, I saw your college cuff-links when you reached up to pick your nose.”