natural
loose, soft, wavy
tight
little
thick
long
corkscrew, spiral
auburn, blonde, dark, etc.
slight
His hair had a slight curl to it.

stray
She pushed a stray curl away from her eyes.

tangled, unruly, untamed
She smoothed down her tangled curls.

damp

have
She has beautiful blonde curls.

press back, push back, smooth back, stroke back
smooth down
ruffle, run your fingers through
tease
He carefully teased his curls into place.

shake
She shook her dark curls sadly.

brush

fall, tumble
Her auburn curls tumbled about her face.

hang
bounce
frame sth
Her face was framed by a mop of black curls.

in curls
His hair spilled in curls over his forehead.

through the/your curls
She raked a comb through her curls.

a cascade of curls, a mass of curls, a mop of curls
Her hair was styled into a cascade of spiral curls.

lose its curl
Her hair lost its curl as she got older.

faint
He acknowledged her remark with a faint curl of his lips.

curl of
a curl of smoke