Using IOS phones

1. Go to Settings > Control Center, then tap the Add button next to screen recording
2. Open Control Center on your iPhone, or on your iPad.
3. Tap the gray Record Button.
4. Exit Control Center to record your screen.
5. To stop recording, open Control Center, then tap the red Record Button.

Using Android phones

1. Swipe down twice from the top of your screen.
2. Tap "Screen Record". You might want to swipe right to find it.
3. Choose what you want to record and tap "Start". The recording begins after countdown
4. To stop recording, swipe down from the top of your screen and tap the screen recorder notification.

Important Note: The above instructions do not apply to all android phones. If you are unable to locate the screen record option then it is best to use screenshots if you need to capture something on your screen.