Get into a habit of listening to what your mate is saying.
Not the kind of listening that you do when you go out or sit at the dinner table, but a different kind of listening.
Have you ever overheard your mate make a comment to a friend or family member about something they really want or want to do?
Maybe you heard your boyfriend or husband tell a friend that they would love to take up a hobby or pursue some creative stuff.
For no reason whatsoever, make a special effort to get that for him.
Allow them or create the circumstance so that they can do it.
You might have heard your girlfriend or wife mention a spa that they would love to try.
Again, without any reason, surprise her.
This shows that your mate is really paying attention to things important to you.