How do you use FaceTime on your ipad

You have to first register an e-mail for FaceTime on your iPad. Then you can FaceTime your contacts, the ones with an Apple device. (Your registered e-mail will appear on the other person's device when you call them.)

here

http://support.apple.com/kb/HT4319

Try here.

http://www.imore.com/facetime-ipad

Or here.

http://www.ilounge.com/index.php/articles/comments/the-complete-guide-to-facetim e-imessage-set-up-use-and-troubleshooting/

Perhaps if you explain what you have tried and what is not working, we may be able to offer some specific help.

Troubleshooting FaceTime http://support.apple.com/kb/TS3367

The Complete Guide to FaceTime + iMessage: Setup, Use, and Troubleshooting

http://tinyurl.com/a7odey8

Troubleshooting FaceTime and iMessage activation

http://support.apple.com/kb/TS4268

Using FaceTime and iMessage behind a firewall

http://support.apple.com/kb/HT4245

iOS: About Messages

http://support.apple.com/kb/HT3529

Set up iMessage

http://www.apple.com/ca/ios/messages/

Troubleshooting Messages

http://support.apple.com/kb/TS2755

Setting Up Multiple iOS Devices for iMessage and Facetime

http://macmost.com/setting-up-multiple-ios-devices-for-messages-and-facetime.htm l

FaceTime and iMessage not accepting Apple ID password

http://www.ilounge.com/index.php/articles/comments/facetime-and-imessage-not-acc epting-apple-id-password/

Unable to use FaceTime and iMessage with my apple ID

https://discussions.apple.com/thread/4649373?tstart=90

Hope it helps