Groups are platforms through which you can chat about the markets, share your positions and improve your trading experience by interacting with a community of traders!
Each group is different and will have their own unique purpose; you should check whether groups are of interest to you by looking at their biography and check out what they do!
There are different types of groups; some are public (anyone can join) and others private (you can only access them through an invitation), and how much you can interact and share in that group can be changed by the group admins.
If you haven't looked at any groups yet, check them out! You can find what groups your friends or other traders are in by clicking on their profile, and scrolling down to "view groups"