How to hack someone's WhatsApp chat

1. Pick your phone and open a web browser (Chrome).
2. Type web.whatsapp.com
3. Now take that friends who want to watch his/her chat phone 📱.
4. Press the menu key or the three dot on the upper left side of the screen.
5. Select Whatsapp web from the list 📃
6. Now take your phone 📱 and scan the code on the QR code..
7. Now you are monitoring your friend.