@KaylaMaree oh, i see, well tips would be defiantly knowing them and trying to picture how he or she would really act in a situation. Try putting yourself in their pov and think of things they would do or say. You definatly have to think outside of the box when writing fanfictions because if you don't, the book won't go or seem to be as you thought it would be. Also, another good thing is to have all ideas in your mind, even if your not going to use one idea for it, just keep it in the back of your mind because you never know if you going to use it.