With half an ear

Pro Tip 1/3

Partial Attention

Used when someone isn't completely focused on what they're hearing or doing.

During the game, he was only listening to the commentary with half an ear.

Pro Tip 2/3

Subtle Disinterest

Implies a lack of enthusiasm or a slight disregard toward the speaker or activity.

She listened to the sales pitch with half an ear, clearly uninterested in the product.

Pro Tip 3/3

Multitasking Implication

Often used to suggest someone is doing another task while listening, thus splitting their attention.

He was cooking and listening to the instructions with half an ear.