Most people come into the world assuming that their desires are everybody's desires. We live life by the Golden Rule: "Do unto others as you would have others do unto you." This obscures that there's often a wide variety in the things we would like others to do unto us, and that assuming everybody wants what you wants often leads us to do exactly what they don't want.
It was a revelation when my therapist told me "You need to show love in the ways that other people want to receive it, not the way you want to send it." It hadn't really occurred to me before then that things I considered really inconsequential - checking if she got home okay, or leaving the porch light on for her at night - might really matter to my girlfriend (now wife), or that things that I considered really important - like listening to my latest theory on reality, or showing enthusiasm when I show her my latest product demo - might be considered inconsequential by her.
Many people have this intuitive idea that service & favors are a zero-sum game, but in actuality, some actions cost you a lot less than the recipient benefits from them, and some cost you a lot more than the recipient cares. It makes a lot of sense to perform favors that are cheap for you but benefit the recipient a lot. It's on you to figure out how much the recipient cares and how much time & energy you can spare for them.