to perk (up) one's ears
[perk|prick] {one's} ears upto perk (up) one's ears
01
to hear something interesting and start to listen to it carefully
![to [perk|prick] (up|) {one's} ears definition and meaning](https://cdn.langeek.co/photo/42696/original/?type=jpeg "to [perk|prick] (up|) {one's} ears definition and meaning")
Idiom
Informal
أمثلة
So, if there's a simple way to make your business more profitable, you should perk your ears.
