'Contempt': Analysis shows how Marco Rubio 'really feels' about other Trump V.P. hopefuls

"How does Marco Rubio really feel about the others on Trump's V.P. short list?" A body language expert answered that question Saturday.

Rubio, who vehemently opposed Trump when he ran against him in the 2016 GOP primary, has since been a dedicated loyalist for Trump. Recently, reports suggested that Rubio was among those Trump is rumored to be considering for his second-in-command.

Enter Dr. Jack Brown, an expert who recently analyzed the now-infamous State of the Union response by Sen. Katie Britt, an Alabama Republican.

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"Last Sunday, Sen. Marco Rubio was interviewed by Jonathan Karl on ABC's 'This Week'. What follows is a body language analysis of a short but crucial portion of their exchange," Brown wrote. "Jonathan Karl reiterated what Rubio had said earlier in the week, 'You said it would be an honor to be offered a spot on Trump's ticket. Really?' Rubio answered, 'Yeah' and proceeded to give a lengthier explanation."

Rubio then says, "That's a decision that he's going to make. He has plenty of really good people to pick from." That stood out for Brown.

"Just after Rubio says, '...to pick from', Rubio displays an excellent example of what is known as a 'microexpression'. There are many varieties of microexpressions (for many different thought-emotions) – and this particular one indicated contempt," according to Brown's analysis on Saturday. "This microexpression is centered on the region of the right corner of his mouth (his right, not ours), jaw, and (less pronounced) right 'mustache area', and lateral to his right nostril."

His right nostril, according to Brown, "is also flared and his right eye (eyelids) are momentarily slightly closed."

"It's helpful to think of a microexpression of contempt as an evanescent, unilateral snarl," the expert added. "Note that although Rubio is complementary with his words toward Trump's other possible VP picks – however the Senator's body language says the polar opposite."

See the full analysis and video below or click here.