T.D.
It looks like others have given you good advice about fun activities you could do together. I just want to encourage you by saying that if you just spend time with her and include her in what you are doing... she will have enjoyed her time with you. Even if you hear comments like.. "that's not how we do it" or "This is boring" etc... She will remember her aunt that loves her and is alot of fun. Make good memories!