People like when other people care about them and one way to show that is to remember their name. Some people are too self important and think everyone should remember their name. We have a name for that. It's Asshole.

Knowing people's names isn't about hearing it once and remembering. It's about learning people's names and forming relationships. Here are some ways I learn names

When you meet someone and they tell you their name repeat it to them. When you ask them a question, address them by name. Use their name more than you think you should.

...And when you inevitably forget their name, apologize and ask again. Before they even know you forgot. Sometimes (most of the time) they don't remember your name either.

Better still. Apologize, tell them you forgot, and ask them if you can guess. You know what you think it was. Was it close to Jason? Do I look like a Jason to you? Well, actually... (better conversation than what preceded)

Use mnemonics. A girl in my class sat three from the end. Her name was Trinity. Zoe and kYm were next to each other in the back of the room. YZ. Use your penchant for location as a tool rather than excuse.

Deliberately read nametags. At the supermarket checkout. Security guards. Janitors. Doesn't matter. Thank them by name. This is EXACTLY what their tags are for. Use them! This is good practice for when it "actually matters" or an easy way to be decent to other people.