挠

nod noggin now SCRATCH forehead with hand
pictogram is originally of a potter 儿 with pottery at his kiln which has been simplified to 戈. The hand radical 手 shows he is STIRRING the mud and clay prior to forming and firing it.
NAO2

绕

silk scarf really WRAPS rope around
Silk determinant 丝 shows the rope which is wrapped around pottery which is being formed.
WIND COIL WRAP-AROUND DETOUR CIRCUMVENT  DETOUR BYPASS
RAO4