I find it pretty difficult to sketch people, and even more to paint them quickly. I want to illustrate when travelling, so I should learn it. Right now I'm practising with some photographies from my trip in Iceland.
restless
–adjective
1. characterized by or showing inability to remain at rest: a restless mood.
2. unquiet or uneasy, as a person, the mind, or the heart.
3. never at rest; perpetually agitated or in motion: the restless sea.
4. without rest; without restful sleep: a restless night.
5. unceasingly active; averse to quiet or inaction, as persons: a restless crowd.