Top 5 features of the Apple iPhone X

Animojis

Step 1: Go to iMessage and select Animoji.
Step 2: Look straight into your iPhone X and place your face inside the frame.
Step 3: Start recording the screen and create your Animoji. You can choose a different Animoji using the same recording.
Step 4: Stop recording when you're finished. The video will be saved in your Photos.
Tips: Save Animojis and use them outside iMessage: Make sure screen recording is enabled.

Face ID Detection

To start using Face ID,
Step 1: Go to Settings > Face ID & Passcode.
Step 2: Tap Set Up Face.
Step 3: Look straightly in your iPhone camera and place your face inside the frame
Step 4: Move your head to make the circle. If you're unable to move your head, tap Accessibility Options.
Step 5: When you finish the first Face ID scan, press Continue.
Step 6: Gently move your head to complete the circle for a second time.
Step 7: When Face ID setup is complete, press Done.

Apple Pay

Step 1: Go to Settings > Face ID & Passcode > press the switch on.

Step 2: To add a payment : Go to Settings > Wallets > Apple Pay.  Look at your camera to authenticate with FaceID, otherwise you have to enter your full payment info.

Step 3: Once you are in a store to use your card that accepts Apple Pay, double-tap the power button (side button on the left side of iphone x) . Look at your phone and you’ll see the Face ID icon which will be move in a spiral for a moment. And it's Done.

Pseudo Dark Mode

Step 1: Go to Settings > General > Accessibility > Accessibility Shortcut.
Step 2: Enable Smart Invert Colors.

Launch Control Center/Notification Center

Step 1: Go to Settings > General > Accessibility > Assistive Touch and enable the Assistive Touch switch.
Step 2: Assign one of the Custom Actions like 3D Touch to Control Center or Notification Center.
Step 3: Use the Custom Action with the virtual home button to quickly get Control Center or Notification Center.