Conor McGregor's recent appearance with Conan O'Brien provides a fantastic example of a rarely discussed yet classic nonverbal signal - Lower Jacket Self-Preening.
MMA Champion displays Lower Jacket Self-Preening (aka "Picard Preening") first (during 0:04 - 0:07) as Conan brings up the topic of LeBron James posting McGregor's quote.
This variety of preening is much more common with men and is one example of an alpha up-regulator. Conor is "dialing up his alpha" qualities as he "steps into" his explanation of James posting his quote and what it means to him.
UFC 194 victor display a tongue jut (1:28). This signifies his hesitancy to want to discuss this portion of his life ("I've been caught" - and I don't want to explain this, but I have to). This also signifies some feelings self-deprecation.
A second Lower Jacket Self-Preening simultaneous with a second tongue jut, lick variation (1:29).
Here we can see an inward lip roll - signifying McGregor's psyche is trying to suppress emotions from growing (also at 1:30).
Conor McGregor was stunned last night in UFC 196 losing to Nate Diaz in the second round.
Nonverbal Communication Analysis No. 3489: Margot Robbie wants Prince Harry
Nonverbal Communication Analysis No. 3138: Wisconsin's Nigel Hayes, "God She's Beautiful" and Body Language
Nonverbal Communication Analysis No. 2884: Mario Götze, Germany, the 2014 World Cup final, and the Body Language of Fiero
Nonverbal Communication Analysis No. 3402: UFC 194: Conor McGregor and José Aldo - Octagon Post Fight Interview
Nonverbal Communication Analysis No. 3482: Donald Trump Refuses to Disavow David Duke and the KKK
Nonverbal Communication Analysis No. 3457: Chelsea Clinton refers to Bernie Sanders as "President Sanders"
Nonverbal Communication Analysis No. 2861: Ronald Reagan and Variations on Thumbs-Up Body Language
Nonverbal Communication Analysis No. 2135: Ronald Reagan in Nashua, New Hampshire "I'm Paying for this Microphone Mr. Green!"