How to Use FaceTime
The FaceTime application makes videoconferencing on your Apple iOS device, such as your iPhone or iPod, a reality. The application allows you to see as well as talk to another person using applicable iOS devices over a wireless network. Therefore, you can use the application to communicate with another person using the Internet regardless of your location. To use FaceTime effectively, both your device and the device of the person you want to communicate with must have a front-facing camera.
Tap the "Phone" application from the home screen of your iOS device.
Tap "Contacts" in the navigation bar at the bottom of the screen.
Scroll through your list of contacts, then select the contact that you want to have a FaceTime chat with.
Tap the box labeled "FaceTime" on the contact's screen. The FaceTime application will attempt to contact the other party. Your device rings while FaceTime is contacting the other iOS device. If the other person accepts the connection, your screen will show the other person's image. A small box also appears on the screen displaying the image the other person sees from your device.
Speak to your contact as normal while holding the device directly in front of you so that your contact can clearly see your image on their screen.
Tap the "Camera" icon at the bottom-right corner of the screen to switch from the camera on the front of your device to the one on the back. Use this feature if you want to show the person you are speaking to an image on the other side of your device.
Tap the "Mute" button on the bottom-left corner of the screen to prevent the other person from hearing you. Tap the button again to resume audio.
Tap the "End" button at the bottom of the screen when you are ready to end the call.