Have you ever noticed that when someone else is talking that you struggle to listen. And what if you are in a crowded room, and other people are texting and talking and the such? How do you stay focused?
The most simple way, believe it or not, is to use imagery. Picture a telephone, the old school type with a cord, held up to your ear with a long cord running directly from you to the speaker. Picture the phone connect directly to a microphone next to their mouth. Envision having the perfect connection.
The imagery brings focus. And focus ensures you catch every single word they are saying.