笑逐颜开 (xiào zhú yán kāi) | Meaning: smile spread across the face (idiom); beaming with pleasure | Chinese Idiom with Pinyin & Origin

brows raised in delight, eyes laughing (idiom); beaming with joy · all smiles眉开眼笑méi kāi yǎn xiào

to have a smile on one's face含笑hán xiào

grinning from ear to ear (idiom) · beaming with happiness喜笑颜开xǐ xiào yán kāi

all smiles · smiling mischievously or ingratiatingly嬉皮笑脸xī pí xiào liǎn

smile spread across the face (idiom); beaming with pleasure · all smiles · joy written across one's face