how do i get nancy drew to say what clouds

I really don't remember. Unless the WT here gives more details, I can't help with this.

Having said that, getting pictures of the clouds and downloading them to the computer is an optional task so you do not have to complete this to finish the game.

You should have gotten a drawing of clouds. You can use it as a reference.
Take pictures of those clouds by searching for them.
Then download the different cloud pictures.

I'm not sure if Nancy names the clouds when she sees them.

also when she picks up the box cutter knife how do i get her to say u oh

Frosty will also ask about the cloud pictures. Nancy will say what cloud picture(s) she is missing

how do i get her to say it.

If you did everything at right time and correctly, she will automatically say those things.
See what else you need to do in your To Do list.

ok