Hi. This is a question that requires a personal answer. To answer it, you need to assess whether there is an element, activity, or thing that both you and your mother like or are interested in. You can use the answer below as an example.
My mom and I are interested in similar things as we both enjoy watching unfamiliar movies a lot. Of course we like famous movies, which everyone knows, but we are very interested in exploring cinema and finding great works that are not widely publicized. Although we have different interests, we think it's important to keep a common interest, something we can bring together.
