Follow these steps to enjoy this.
1. Open Whatsapp on your phone.
2. Select your menu
3. Select Whatsapp web
4. Open your google chrome browser. (Please note, this only works on google chrome, no firefox, no opera, just google chrome).
5. Type web.whatsapp.com in the search button and press enter to search.
6. Web.whatsapp.com site instantly opens.
7. Now go to your whatsapp web on your phone and scan the QR code shown on your computer screen.
8. Holaa your phone vibrates, and it opens up your whatsapp conversations.
Soo easy right. Enjoy.