Verb + 眼神 / 眼神 + 里
The noun 眼神 (yǎnshén) means "the look in one's eyes" or "expression in one's gaze" and refers to the emotion or meaning conveyed through someone's eyes. It combines 眼 (eye) with 神 (spirit/expression). It is commonly used in narrative and descriptive writing, as in 交换了眼神 (exchanged a look) or 眼神里充满了悲伤 (eyes filled with sadness).
她用温柔的眼神看着孩子。
Tā yòng wēnróu de yǎnshén kànzhe háizi.
She looked at the child with a gentle gaze.
他的眼神里充满了坚定和自信。
Tā de yǎnshén lǐ chōngmǎn le jiāndìng hé zìxìn.
His eyes were full of determination and confidence.
我注意到她的眼神有些不安。
Wǒ zhùyì dào tā de yǎnshén yǒuxiē bù'ān.
I noticed that her eyes looked somewhat uneasy.