# Mentions & Reactions

## Mentions

- `@username` notifies a person; `@all` and `@here` are powerful—use sparingly.
- Mention a role (if enabled) to notify a group of people.

## Reactions

- Add emoji reactions to acknowledge or vote without new messages.
- Filter for reacted messages via the room’s search filters.

## Status & availability

- Respect DND and away statuses; use threads instead of broad pings.