It would be sweet if you could have a variable sort of, but instead of displaying a number when you went %%NAME%% it would display John, or Kate.
For example, at the start, you could choose what your name would be out of about four, such as Kate, John, Charlotte, and Johnno. Later in the story, your friend could ask you: "So what have you done today, %%NAME%%?" - Obviously %%NAME%% would be replaced with Kate, John, Charlotte or Johnno, depending on what you chose at the start.