How to add friends in Gas app?

so how to add friends in gas app I'm just going through their support center because like this app is not available in my region but just in case it's easier for you just like swipe to the add friend screen in the app you can add friends in four different ways via your phone contacts your friends or friends by school or by searching for username so if you know your friend's username just search for that you can also also reach dude by phone contacts when you just create an account you can enable access to your contacts now you can see friends of your friends maybe if you're studying in the same grade in the same school and people start to add yourself in the app you will see friends of friends or just by school and when these guys app is active in your school you will see a list of people there