To Join a group
Step 1
Head to Groups.
Step 2
Open the group you would like to join by clicking 'View Details'.
Step 3
Click on 'Join Group'.
To Leave a group
Step 1
Head to Groups.
Step 2
Select 'My Groups' and open the group you want to leave by clicking 'View Details'.
Step 3
In the group, Click on the menu button then you will see the 'Leave Group' option.