Jimin lowering his voice like that can make a bitch melt 

• his eyes widened
• her eyes went round
• her eyelids drooped
• his eyes narrowed
• his eyes lit up
• his eyes darted
• he squinted
• she blinked
• her eyes twinkled
• his eyes gleamed
• her eyes sparkled
• his eyes flashed
• his eyes glinted
• his eyes burned with…
• her eyes blazed with…
• her eyes sparked with…
• her eyes flickered with…
• _____ glowed in his eyes
• the corners of his eyes crinkled
• she rolled her eyes
• he looked heavenward
• she glanced up to the ceiling
• she winked
• tears filled her eyes
• his eyes welled up
• her eyes swam with tears
• his eyes flooded with tears
• her eyes were wet
• his eyes glistened
• tears shimmered in her eyes
• tears shone in his eyes
• her eyes were glossy
• he was fighting back tears
• tears ran down her cheeks
• his eyes closed
• she squeezed her eyes shut
• he shut his eyes
• his lashes fluttered
• she batted her lashes
• his brows knitted
• her forehead creased
• his forehead furrowed
• her forehead puckered
• a line appeared between her brows
• his brows drew together
• her brows snapped together
• his eyebrows rose
• she raised a brow
• he lifted an eyebrow
• his eyebrows waggled
• she gave him a once-over
• he sized her up
• her eyes bored into him
• she took in the sight of…
• he glared
• she peered
• he gazed
• she glanced
• he stared
• she scrutinized
• he studied
• she gaped
• he observed
• she surveyed
• he gawked
• he leered
• his pupils (were) dilated
• her pupils were huge
• his pupils flared

• her nose crinkled
• his nose wrinkled
• she sneered
• his nostrils flared
• she stuck her nose in the air
• he sniffed
• she sniffled

• she smiled
• he smirked
• she grinned
• he simpered
• she beamed
• her mouth curved into a smile
• the corners of his mouth turned up
• the corner of her mouth quirked up
• a corner of his mouth lifted
• his mouth twitched
• he gave a half-smile
• she gave a lopsided grin
• his mouth twisted
• he plastered a smile on his face
• she forced a smile
• he faked a smile
• her smile faded
• his smile slipped
• he pursed his lips
• she pouted
• his mouth snapped shut
• her mouth set in a hard line
• he pressed his lips together
• she bit her lip
• he drew his lower lip between his teeth
• she nibbled on her bottom lip
• he chewed on his bottom lip
• his jaw set
• her jaw clenched
• his jaw tightened
• a muscle in her jaw twitched
• he ground his jaw
• he snarled/his lips drew back in a snarl
• her mouth fell open
• his jaw dropped
• her jaw went slack
• he gritted his teeth
• she gnashed her teeth
• her lower lip trembled
• his lower lip quivered

• she paled
• he blanched
• she went white
• the color drained out of his face
• his face reddened
• her cheeks turned pink
• his face flushed
• she blushed
• he turned red
• she turned scarlet
• he turned crimson
• a flush crept up her face

• he screwed up his face
• she scrunched up her face
• he grimaced
• she winced
• she gave him a dirty look
• he frowned
• she scowled
• he glowered
• her whole face lit up
• she brightened
• his face went blank
• her face contorted
• his face twisted
• her expression closed up
• his expression dulled
• her expression hardened
• she went poker-faced
• a vein popped out in his neck
• awe transformed his face
• fear crossed her face
• sadness clouded his features
• terror overtook his face
• recognition dawned on her face