gōngzuò rényuán shuō “yánzhe huángsè xiàn zǒu”, nǐ jiù dītóu zhǎo xiàn; shuō “kàn lánsè páizi”, nǐ jiù táitóu zhǎo páizi

工作人员说“沿着黄色线走”，你就低头找线；说“看蓝色牌子”，你就抬头找牌子。

If a staff member says “follow the yellow line,” you look down to find the line; if they say “look for the blue sign,” you look up to find the sign.