This 2-minute video from ‘Seinfeld’ is a nice example of Judee Burgoon’s Expectancy Violation Theory. Aaron, the “close talker,” violates expectations about how close to stand while engaged in casual conversation. EVT explains that often these types of quirks become predictable and are seen as “normal” behaviors for different individuals so that the behavior would be missed if absent.
This clip is currently available for free at YouTube although it is not set to be embedded. There are other brief clips through the episode that would also be effective.