During the first encounter between Barack Obama et François Hollande, the hand of Obama goes to his leg, showing us he likes to end the meeting by scratching the calf of his leg. Indeed, 40 seconds later, he ends the press-conference.
Micro-scratches (*) are characterized at moments when a surreptitious stinging leads a persons hand to a specific place of face or body, because this point “itches! “. A similar movement and non verbal message could have been pulling up his stockings.
Body language comes before the person is aware of his movements.