If you are like most people, then you probably use WhatsApp as your primary communication tool for staying in touch with family and friends. If you have not opened up your WhatsApp account yet, it is time to do so. There are a few things that you need to do in order to open up your WhatsApp account on your mobile device. First, open the WhatsApp app on your phone and sign in using your username and password. Next, click on the three lines in the top left corner of the main screen and select “Open Account.” Once you have opened up your account, you will see a new tab called “WhatsApp.” This is where you will want to find your contact list and add new friends.