老乡见老乡，两眼泪汪汪 (lǎo xiāng jiàn lǎo xiāng, liǎng yǎn lèi wāng wāng)

老乡见老乡，两眼泪汪汪

(lǎo xiāng jiàn lǎo xiāng, liǎng yǎn lèi wāng wāng)

English Translation: “When fellow villagers see each other, they both have tears in their eyes.”

Meaning:
When you meet someone from your hometown while traveling, there is an immediate emotional connection, as you share a bond from the same place.

Example:
在外地旅游时，我碰到了来自家乡的人，大家都感动得老乡见老乡，两眼泪汪汪。
(When I traveled to another city, I met someone from my hometown, and we were both so moved—“When fellow villagers meet, tears fill their eyes.”)

Source: Hello Mandarin