If you want to move it from the 'home' screen ( I presume you mean the first page), then hold down the app for a few seconds (until it starts 'jiggling' then press and drag to the side of the screen, which will open a second page. If you want to put it in a folder, do the same but overlay it on top of another app to create a folder. Both apps go in to the folder, and you can rename the folder to whatever you want. If you want the other app out of the folder, get the jiggle activated and drag it out. Folders can Be moved in the same way. Hope this helps.
Thank you!! This should hide my app from my sister for a few days. Dora5678910
If you just don't want the app anymore, jiggle it, then the option to delete appears. You can always redownload it when you want, by returning to the app store and finding it in your Purchased folder.