In my story, most of my choices are things like asking certain questions in order to get specific information from a character (in this case, you can only ask one question), reacting a certain way which determines how a character will respond to you, choosing an outfit, or deciding who to play as in a scene so that you get to see the same scene from different points of view.
However, I’m finding it much more difficult to incorporate choices in the new story I’m working on because it’s an adaptation of a story I wrote a long time ago and since I know how I want the story to go, I’m trying to decide where I can add choices.