Reading, in itself, is not Catholic. Reading the Holy Bible [I prefer the Revised Standard Version], books by or about Saints, or any Catholic devotional and/or instructional book is Catholic.
Just one or two more examples.
Singing, just plain singing, is not especially Catholic. Singing something like "Hail, Holy Queen", however.... aw, you know!
In other words, whatever I do, I do as a Catholic, but there are certain things I do specifically because I am a Catholic.
If I have to separate something in my life from the fact that I am a Catholic, then
that thing does not belong in my life.