the best advice I can give is that when she asks you questions about certain things have an opinion and not just say "whatever you want" etc. Women want to feel that you are extremely interested in the planning and want you to be a part and have a vote in things. So if she asks you anything tell her what you really think and hopefully that will be enough it was for me.
Man, there is no right answer to this question... From a girl (who is one of the five on the planet who didn't daydream about weddings as a little girl), my advice is to just give a nice comment on something here or there when she has all sorts of samples/colors/pictures in front of her. It doesn't matter if she doesn't know what she wants, even if you pick something out, she'll probably end up changing it anyways. From what I've gathered from hitched girlfriends, the only things they really wanted their fiances to plan was the band, the hotel (or wherever you're sleeping that night, make it romantic), and transportation to the honeymoon. You might even wow her by planning her a massage or something to relax her after the ordeal of a wedding. Just have a couple of activities on the backburner for the honeymoon, but don't worry about that part too much. We all know that honeymoons are usually spent in the sack. But your best defense against an accusation of not-caring is: "Sweetheart, I want this day to be perfect for you... and you've got much better taste than me."
I appreciate all of the advice. I think the best thing that I can do is to try and give my input expecting it to be shot down but knowing that it makes her happy , hopefully ya'll can understand that sentence! I am a firm believer in everything will work out one way or another and as long as I am being proactive everything should be fine....Hopefully .