Here's how to add a friend.
1. Sending or accepting friend requests during matching. (Click the icon on the right)
2. If there is someone from your past matches you want to be friends with, just tap on the Send Message button and send them a message.
3. 'Message' tab> 'Friends' icon> Tap the '+' icon on the upper right corner of the friends list > select 'Add friends by Azar ID.'
*You can check your matches' Azar ID by asking them directly.