Let me start by saying that 4 years ago I had no idea what I liked for decorations. It might not seem so important, but you can know a lot about a person by the way they decorate their home.
Earlier today I went to my sisters home and we got to talking about how me and my sisters all have different taste, And it truly shows even from the way we dress.
I do believe it is a process to know exactly what you like, but trust me when I say it will reflect on the person you are!