If you notice your partner doing something nice, LET THEM KNOW.
Just this simple little action can have a huge impact on your relationship. Firstly, it’s nice to give your partner a compliment and credit for the good thing they are doing. This also makes your partner feel noticed and appreciated, and after all, we all like to be appreciated. In turn, when we acknowledge and appreciate things others do, it usually motivates us and them to do more nice/good things and they will hopefully look to compliment you as well! It keeps communication open and brings an element of positivity into the relationship. It will also build on happiness and when we are happy, things are a lot easier to deal with.
It’s the little things that amount out to bigger things!