Beginner help guides is the best place to ask...but still there are so many options it's hard to advise you!
It's a fast weapon, so going with agi and high wpf would maximize that aspect...but it has decent damage so it would work for a str build too I think.
Do you want a shield or just 1h?
I would recommend either 15, 18, 21, or 24 str and either 15, 18, or 21 agi.
Edit: I suggest you let us know what kind of playstyle and tactics you like to use, and we can get a better idea of what build would suit you.