sit

still

The child sat still during the doctor's examination while her mother held her hand.

quietly

The child sat quietly in the corner during the thunderstorm.

comfortably

in silence

The two friends sat in silence, waiting for the bus to arrive.

cross-legged, with your legs crossed

My grandfather sat cross-legged on the carpet to play with his grandchildren.

(bolt) upright

When she heard the loud noise, she sat bolt upright in bed.

demurely, primly

The young girl sat primly in her new dress, waiting for the ceremony to begin.

back, down

side by side, together

let sb

When the bus was crowded, a kind passenger let the elderly woman sit down.

gesture for/to sb to, motion (for/to) sb to

The teacher gestured for the nervous student to sit in the front row.

astride

The cowboy sat astride his horse and surveyed the vast landscape before him.

at

The children sat at the kitchen table eating their lunch together.

beside

The old man sat beside the window, watching the birds in the garden.

in

She sat in the waiting room for an hour before her appointment.

on

The children sat on the floor while their teacher read them a story.

opposite

The two friends sat opposite at the café table, enjoying their coffee together.

comfortably, easily, well

uneasily

with

Her casual attitude didn't sit well with her strict parents.