knee, thigh, lap

beat one's knees

change posture while kneeling or sitting cross-legged

to be done with thinking

(met.) to be immersed in thought and deliberation

to come out of thoughtfulness

(met.) to be immersed in thought and deliberation

(met.) to be immersed in thought and deliberation

(met.) to be immersed in thought and deliberation

to sit with etiquettes

to come under the wing (of), becoming a student, sitting in a classroom

to hide in one's laps

with both legs folded

the knee cap

the lap

keeping head on knees, concerned, worried, troubled, immersed in thought

head in lap, knees, Metaphorically: anxious, worried, grieving, pensive, in deep thought