In her recent appearance on "Jimmy Kimmel Live", Carey Mulligan touts her most recent film "Inside Llewyn Davis" (Coen Brothers). She also gives us a great body language cluster - which among other things is correlative with a High Sincerity Quotient.
Note: The original video has, since the original post, been removed from its online source. The image above however, was captured from this video. In the original, the talented (yet very human) actor tilts her head to her right (exposing a greater portion of her neck to Kimmel), looks slightly upwards and focused at a distance. The neck tilt demonstrates, particularly coincident with this "far away", upward gaze signifies an honest vulnerability and indicates a sincere emotional tone.
She also scratches her right arm with her left hand. This MAP (Manipulator, Adaptor, Pacifier) amounts to what is a partial arm cross. The nonverbal cluster occurs when she is contrasting "American Christmases" with Christmases in her home city and country (London, England). Her unilateral arm cross strongly suggests she has spent the holiday season in far from home and doesn't care for it.
For additional body language from this interview see:
Nonverbal Communication Analysis No. 2653: Carey Mulligan - Blunted Surprise and ... Body Language on Jimmy Kimmell, Part I
Nonverbal Communication Analysis No. 2652: Justin Timberlake and Jimmy Fallon on Saturday Night Live - Trying to Suppress the Laughter
Nonverbal Communication Analysis # 2311: Reporter Robyn Curnow's re: Oscar Pistorius Her Body Language shows her Bias
Leadership Secret # 22: Inspiring Confidence vs. Looking Vulnerable
Nonverbal Communication - Negotiation Secret No. 30: Lip Biting - Gabe Watson
Nonverbal Communication Analysis No. 2512: Matthew Cordle's YouTube Confession and the Death of Vincent Canzani "I Killed a Man" - What His Body Language Tells Us ... It's NOT what you think!
Nonverbal Communication Analysis No. 2625: Paul Walker of 'Fast & Furious' and Body Language of the Tongue Jut