I'm thinking of giving an extra fortune point but making them have particular flavours they must be used as when being used in order to encourage more narrative description.
Eg.., one or two are "terrain or physical features" and can be used if player describes how those help them such as getting the sun in the foe's eyes, one or two are "emotional and personal factors" and can be used when describing how you hate that creature or are striving to aid your friend etc.
Any could still be spent on the other uses of fortune points.
I want to encourage players to get in the habit of doing this sort of thing, which eventually would earn them bonus fortune points.
Any thoughts on the approach or suggestions for other categories of "player driven narrative"?