On mobile: - Click the Copy button to copy the Join URL. - Open Session, tap the plus button and choose "Join Community". - Tap the "Enter Community URL" field, paste your URL and tap "Join". On mobile, with this site open on your PC: - Click the QR Code button for your chosen community on your PC. - Open Session, tap the plus button and choose "Join Community". - Choose "Scan QR Code" at the top and point your phone camera at the QR code.