It is very hard to help someone add to a kit when we don't even know what it is, if its a canned prehopped kit using dried malt extract instead of sugar and using fresh yeast (dried or liquid appropriate to style) will help. Maybe adding some fresh hops to the DME maybe 1oz for aroma (again a hop to style) or make the kit as per instructions and dry hop 1oz to style, again for aroma.
Personally I would make the kit as is and see how I like it and if its close to what I was looking for then I'd look at the recipe wiki and pull some hop ideas to add and yeast strains to try.
I made some Coopers kits and I used DME instead of sugar and kept tasting notes so I knew what I wanted to change the next time I made it.
I hope this helps.