To create a group, these are the steps you have to do:
- Once you open Whatsapp, make sure it is on the tab CHATS
Look for the threepoint icon which is normally located at the top-right of Whatsapp, you can also find the option in the New Chat icon.
- Select the option NEW GROUP
- In the next step you have to select one of your contacts, unfortunately it is not possible to create a whatsapp group without adding at least one participant from your contact list.
- Write a subject. This will be the name of the group and will be visible to all participants.
- Click on the green tick once you have everything set up.
You've already created the group.
Below is an official Whatsapp video, where you can see the whole process.