shine one’s eyes
n.— «While it is good to invest in shares, I would implore Nigerians to shine their eyes, if I may borrow a popular street lingo, so they would not have to cry at the end of the day.» —“Please Shine Your Eyes” by Olusegun Adeniyi This Day (Lagos, Nigeria) Oct. 21, 2004. (source: Double-Tongued Dictionary)