Try tapping the app once, if it says PAUSED tap it again and that should start it loading. In some occasions you can hold onto the app until it wiggles, then click the cross on top of it and follow the on-screen instructions.
More things to check:
Plug it into iTunes, does the iDevice (phone or music player) have enough memory to run the app
If an app is over 10MB you need to use WiFi or iTunes on your computer to download it.
If it's been jailbroken your iDevice can slow down, and your iDevice may not be recognized by the Apple servers.
Check also that your iTunes password is correct. If a box keeps popping up asking you for it then enter your password.
If there are other apps downloading you will have to wait for them to download before the app downloads.
you have to wait 24hrs
12 hours
1 hour
there are patches for it but for the normal download than you should wait a while
you should wait 72 hours
If on steroids for a week how long should you wait to consume drink?
If you are running iOS 5, you can update to iOS 6.1.3 (or 6.1.4 on iPhone 5) by going into Setting>General>Software Update. If you are running iOS 3 or 4, you can update to the latest software by plugging your iDevice into your iTunes-authorized computer and wait for your device to be recognized. Once this is done, there should be a pop-up to download and update to the new iOS. Everything should be self explanatory by then.
You don't have to wait
you should wait for him to talk to you :) <3
First home buyer should wait how long before refinancing?
you will have to wait a month
She should wait until they get married. If you don't wait it can cause a lot of heartbreak.