1. Friends → + (Add friends). Search for your friend's Strenla username and send a request.
2. They accept under Friend requests on Friends, or with Accept at the top of your chat with them. Then you can chat.
3. Tap the chat button at the top (a number on it means unread messages; on a computer, Chats at the bottom of the side menu), or You → Friends.
4. Friends has Chats (newest first, with the time of the last message) and Shared (what friends sent you).

Only friends can message you or share with you. In a chat, the ⋯ menu lets you make them your coach, remove them, or block them.

In a chat, messages are grouped by day, with the time under each run of messages. On a phone the chat fills the screen; the arrow at the top takes you back.

Messages are kept for 30 days, then deleted. Things shared with you stay in Shared.