This is not an actual re-construction of that scene, but an incredible simulation:
Jerry: "You'll never guess who I ran into. Diane DeConn (sp?)." George: "Really? How did she look?" Jerry: "Great. She asked about you." George: "Diane DeConn (sp?) asked about me?!" (to woman walking by) "Diane DeConn (sp?) asked about me!!! She was the 'it' girl!!!" Jerry: "Yeah, in fact I think she's going to call you. I gave her your number." George (not believing): "Diane DeConn (sp?) is going to call me? If you're kidding, if this is some little joke, then we can no longer be friends, do you understand?" Jerry: "I got no problem with that." George: "Oh my God, Diane DeConn (sp?) is going to call me." Jerry: "Now...I should tell you...that at this moment...she is under the impression...that you're a...marine biologist." George (looking puzzled): "Why would she think that?" Jerry: "I might have mentioned it." George: "But I'm not a marine biologist." Jerry: "Yes, I know that." George: "Why did you tell her that?" Jerry: "Why, don't you think it's a great job?" George: "I didn't even know it was a job."
And so on. As I said, not an exact re-creation, but you get the idea.
Enjoy!!!