If you want to learn How to Chat on WhatsApp then there is the best place to learn on WhatsApp.
Follow these steps to start chat on WhatsApp
Step -1 ( download & Install the WhatsApp )
Firstly you can download & Install the WhatsApp from the Google play store or click this link to visit play store
Step -2 ( WhatsApp Account using your phone number )
Create your WhatsApp account on WhatsApp using your phone number.
See the image and follow