prick up
Advanced (C1)neutral
to react quickly and pay close attention
"The rabbit pricked up its ears at the slightest noise."
Hear it in context

The Gravity Particle Should Exist. So Where Is It?
PBS Space Time · 19:14
spin-2 boson our ears prick up and we

High Alert! The Great Fertilizer Famine Is Coming, They Can't Hide It Anymore | Redacted News
Redacted · 48:22
their ears prick up because I mean it is just it's not

What are they hiding underneath Antarctica? | Redacted w Clayton Morris
Redacted · 6:25
their ears prick up because I mean, it is just it's not so much about