Jack scratched his chin as he considered his friend's words.

Jack scratched at his thickening beard again, this time drawing blood.

The governments, security forces, the police, the banks...' He tailed off Jack scratched at his stubble again.

Jack scratched his head, thinking.

Jack scratched his chin, wearing a thoughtful frown.

Jack on the front doorstep was scratching his neck vigorously, jingling his tags.

Jack dropped his hand and scratched the dog behind his big floppy ears.

Jack smiled and scratched him between the ears.

Jack had risen to his feet and was scratching nervously at one finger.

Jack shook his head wordlessly, scratched the back of his hand, and walked on.