You can mention a team member or user group to call their attention to a message. Mentions follow the same notification settings as direct messages and alert words. A silent mention allows you to refer to a user without triggering a notification. A wildcard mention allows you to mention everyone on a channel, or mention all topic participants. | A silent mention allows you to refer to a user without triggering a notification. Silent mentions start with @_ instead of @. | Using the @**topic** ...