first of all you will need to create a google account or login with an existing google account. to do this, go to settings, accounts and select google. you will choose whether you want to create a new one or loging with an existing one. after logging in, open the play store app and type whatsapp on the search bar on top and tap search button. on the results tap whatsapp messenger and tap install.
after installing, you will find the whatsapp shortcut on your menu app list. open it and enter your cellphone numbe