有心眼儿

有心眼儿:

Literally means:

have brains

Actually means:

It means being observant so as to do something well. Sometimes the phrase means that a person is ill-natured or over-alert to get what he/she wants. It often refers to keeping an eye on tiny things that escape others' attention.

善于观察、留意，周围和小事，以便把事情做好，也指心地不好或过多地防着别人，以达到个人目的。多用于对细小的不引人注意的问题。