If you mean that your icons a giggling, then just press the home button at the bottom of the phone.
The icons giggle if you hold on them... When they giggle you are able to move them around to re-arrange your home screen by dragging them about. Try it. If you don't want them to giggle don't hold your finger on the icons for too long. They just take a momentary tap to launch the applications.
Hope that helps.