- Launch the Prime Video app on your Fire TV device. - Select a title from the app to watch. - Next, select the Watch Party option from the detail page. - Then, select the Create Watch Party option. - After that, open the link displayed on your screen using a mobile device, or scan the QR code provided using your mobile device’s camera. Doing so will open the Prime Video app to join the chat room. - Now, enter a preferred name under the “Chat as” option in the prime video app on your mobile device. - Tap the Join chat option to open the chat room. - Finally, select the Start Watching option to begin the Watch Party.