交 + Relationship Noun
交 (jiāo) means "to form" or "to establish" when used with relationship-related nouns. It is commonly paired with 朋友 to create the phrase 交朋友, meaning "to make friends." This usage of 交 emphasizes the act of building a connection with someone.
他很会交朋友,到哪儿都能认识新的人。
tā hěn huì jiāo péngyǒu, dào nǎr dōu néng rènshi xīn de rén.
He's great at making friends—he meets new people wherever he goes.
在国外留学让我交到了很多外国朋友。
zài guówài liúxué ràng wǒ jiāo dào le hěn duō wàiguó péngyǒu.
Studying abroad allowed me to make many foreign friends.
她性格内向,不太善于交朋友。
tā xìnggé nèixiàng, bù tài shànyú jiāo péngyǒu.
She is introverted and not very good at making friends.