My wife and I speak different love languages. Hers is expressed through actions, like buying her stuff or taking her out. Mine is verbal and physical so I want touch and kind words.
What we are doing is first to figure out how we can speak the other's language. I'm getting a handle on my depression and that will help pump up my motivation so I do more. She is working on learning why she can't take a compliment and trying to learn to give them sincerely.
After that comes practice. It has to become a habit. So I cconsciously make an effort to do things I don't want to do and she is trying to compliment me (as awkward add it is

).
So, to sum up; first we figure out what's stopping us from soaking the other's language and then second we practice it so it becomes habit.