When Seth Rogen edged out onto The Tonight Show set, he looked less than a sure thing.  Sure, he had a nice suit, fashionably loose tie, and a fashionable-three-years-ago five-day beard.  But he looked painfully uncomfortable, rarely making eye contact and sitting tensely.  What a wonderful surprise to see him turn in a textbook performance as a great guest.

He first blew our expectations out of the water when Jay displayed a cover of GQ with Rogen front and center.  Pointing out his modified-fro curls, Jay asked, “Is that your hair?”  “Yes,” Rogen replied. “And if you’re wondering, the carpet matches the drapes.”  The audience fell apart!  Rogen milked his doofus persona and kept Jay in stitches throughout his segment.   He had done his homework: bringing out a picture of Jay in jeans and denim shirt (his favorite outfit), Rogen referenced his Northern roots by noting “We call this a Canadian tuxedo.”

The comedy centered on Rogen’s underachiever past, showing a clip from Dawson’s Creek that revealed the stoner character he plays in Pineapple Express (which he was promoting) has deep roots.  Jay even bounced jokes off of Rogen’s parents – in the audience – throughout the segment.

So why did Rogen succeed when he broke so many standard guest appearance rules?  He stuck close to the most important rule: reveal something about your true self that the audience and the host can relate to.  Play to your entertainment strength.  And he did this masterfully.