You can catch your own name across a loud room. Imagine if you listened to everyone that closely.

The ability is already there. Somewhere under the noise your hearing is running a constant search, and it is sharp enough to pull one word out of a hundred conversations, which tells you the equipment is excellent and the setting is narrow. It is tuned to you by default, not by necessity.

Lend that sharpness to one person for one conversation this week. No phone in your hand, no planning your reply, just tracking what they are actually saying closely enough that you could repeat it. Most people have never had that done to them, and they can feel the difference immediately.