Tā xiàng ge méitóushén, mǎn wūzi luàn zhuàn, jiùshì zhǎo bú dào yàoshi.
He wandered around the room like a headless ghost but still couldn't find his keys.
Zuò shì yào yǒu jìhuà, bié dāng méitóushén.
Do things with a plan — don't be a scatterbrain with no direction.