1. Tap the “+” button in the global chat (always visible, even if no messages are active).
2. Enter your message (up to 80 characters).
3. Choose a purchase option (different types and durations are available).
4. Tap “Send” to complete the transaction and see your message appear for everyone.

If there are too many active messages, your message will go into a queue and appear when space is available. You’ll be notified when your message becomes visible.