In order to join a community:
1 - Navigate to the communities screen (2nd from the top left icon - 3 hexagons).
2 - Tap the “browse” button (far right corner).
3 - Tap on a community you want to join after scrolling through the trending ones listed below.
4 - Tap the "join" button in the top right corner.
If you see a community jot (jots with hexagonal icons instead of circular icons)
1 - Tap the hexagonal icon(s) on the top right corner of a jot to open the community card.
2 - Tap the "join" button on the card or click "explore" to learn more about the community.