Nothing simpler than that. ALL memory starts with paying attention. It's an annoyingly simple piece of advice, but I guarantee that if you stopped for a moment and directed all of your focus onto something you want to memorize, that you will memorize it. At least, better than if you weren't focused on it.
The best proof of this is with names. Try it out next time someone introduces you to someone else. Get in a mindset of being focused on learning that person's name. You'll find soon enough, that you will have remembered that person's name after.
Trust me and try it!