upward glance; upturned eyes
Refers to looking upward, often with a specific nuance like pleading, coyness, or checking something above. Common in phrases like 上目遣い (うわめづかい) meaning 'looking up (at someone)'.
She looked up at me with upturned eyes.
上目で時計をちらりと見る。
I glance up at the clock.
looking up at someone; glancing upwards
Compound of 上 (うわ, 'up') and 目 (め, 'eye'). The reading うわめ is a straightforward combination of the kun'yomi readings.