ANXIOUS / restless / squirming in chair:
The sign "SIT" can be modified to show someone squirming in their chair.
This can be used to mean "anxiety" and similar concepts. This sign doesn't
exactly mean nervous, it means "restless" or perhaps "ants in the pants."
Think of the right hand as
representing the legs of a person. If you were to show that person shifting
uneasily from side to side in a "chair" it would mean "anxious." Do this
sign by holding your hands like you do for the sign "SIT," then twist your
dominant hand to the right and then to the left so that your index and
middle finger alternate being lifted off of the left "H" (palm down) hand a
couple of times.
YOU FEEL ANXIOUS, WHEN? (When do you feel anxious?)
The sign "anxious" could modified
to function as a classifier (CL:V-bent) representing "legs." The normal sign
"anxious" is a lexicalized classifier. But if you modify and use the
movement of the sign to show how the individual is sitting (perhaps
he or she got spanked recently and is sitting "gingerly?") the sign would
then be considered a regular classifier.