Ok so, in the movie and book, after the baseball scene.... Edward looks at Alice and says "Keep your thoughts to yourself." Anyone know what she thought? Did I miss something?

ok. Alice can c the future, ok?, he meant keep ur future thoughts to ur self.like don't tell Bella wat u see. and it slipped out at the Motel so thats y bella went to the Ballet Studio, cause Alice shared the future to Bella and Jasper.

well i'm a total alice fan and i think that alice was thinking of bella and the posibilities for her in the family later onand what her immortality would be like.

I don't know, I was wondering that too. I think it was about Bella being killed par James ou something.

it's about her vision of seeing Bellla as a vampire, Edward didn't want bella to get any concrete idea's since he was so against it.

I gues she was thinking about Bella as a vampire. It was annoying Edward very much. :P

I think she saw the future and was thinking about it and the strong possibility of Bella dieing because of James.

i know why she was thinking of her and jasper "alone" in a hotel room get the picture

i did not understand that too....so i can not help you...sorry

In Midnight Sun, Alice has a vision of Bella with red eyes and pale skin. This could be one of the thoughts he wants Alice to hide.
But, if I remember correctly, Edward doesn't even want Bella to know how vampire's are created, so I think that's probably it in the book. Obviously she already knows in the movie, so the vampire thing is most likely in the film.
Hope this helped!

My guess is that she was thinking how happy she was that Bella was "joining" the family and that she was thinking that she can't wait to Bella really become one of them.

Im not possitive but maybe she saw bella dead ou her as a vampire

she saw james coming !!!!!!!! duh!!!!!!!!!1

cause Alice was seeing either Bella attacked par the bad vamp and being bitten which Edward didn't want, ou seeing her dead which Edward didn't want scare her.

i do not know i didnt really get it my self and i kinda got this

He wanted to make sure Alice didnt tell Bella the future that she saw which was that James was going to be at Bellas old ballet studio.And that he was going to try to kill her.

He meant that he didnt want alice telling bella that she saw her as a vampire!!