1. It might be in how you address God.
2. It might be in your choice of words.
3. It might be in the pacing of your praying...allowing for pauses (think meditation)
4. It might be in how you have structured your prayers (thanks, confession, adoration, intercession)
5. It might be according to the type of needs you feel are around you that you present.
There is nothing wrong with having a certain style of prayer. Jesus, too, gave us a model prayer in which to use. However, don't be afraid to change it up once in a while. Make sure you are putting yourself into your praying and that it does not become just lip service without your heart. You want to feel as if you are entering the throne room of God as you pray.