How to Start a Huddle in Slack

Clicking the huddle icon near the message compose box (there's no default global keyboard shortcut bound to starting one) launches Slack's audio-first calling feature directly within whatever channel or DM you currently have open, instantly, with no scheduling step or calendar invite required. **What makes a huddle different from a scheduled call**: a huddle is designed around the specific use case of "let's just talk about this right now" rather than a formally planned meeting — anyone viewing the channel or DM where a huddle is active sees a visible indicator and can join with a single click, and there's no host role controlling who can start or must approve joining, unlike the host-gated permission model covered on this site's Zoom and Teams pages for actions like locking a meeting or muting other participants. **Where a huddle lives**: it's scoped specifically to the channel or DM it was started from — starting a huddle from within a specific project channel keeps that huddle contextually tied to that channel, meaning anyone who later opens that channel can see a huddle happened there (and potentially catch up on any messages shared within it), which is a meaningfully different mental model than a video call tool where the meeting exists independently of any specific chat context. **Joining a huddle already in progress**: if a teammate has already started a huddle in a channel you're both in, opening that channel shows a visible banner or indicator that a huddle is active, and clicking it joins you directly into the existing huddle rather than starting a competing new one. **In-huddle controls**: once inside, muting your microphone uses Ctrl+Shift+Space (Cmd+Shift+Space on Mac), and screen sharing and leaving are both handled through icons in the huddle control bar rather than dedicated keyboard shortcuts, reflecting that these are occasional actions rather than the kind of high-frequency action (like mute) that typically earns a memorized key combination. **Sharing quick visual context**: huddles support a lightweight drawing and annotation surface for sketching out an idea visually during the conversation, plus quick screen sharing, both reached through the huddle bar rather than the keyboard — useful for a fast visual explanation that doesn't warrant setting up a full separate screen-share meeting. **Alternative methods**: for anything requiring recording, a formal agenda, breakout rooms, or a larger structured meeting with many participants, a dedicated video conferencing tool like Zoom or Teams (both covered elsewhere on this site) remains the better fit — huddles are deliberately not trying to replace those tools for planned, larger, or more formal meetings, only to remove the friction from a genuinely quick, spontaneous conversation. **Mistake to avoid**: starting a huddle for a conversation that really needs to be documented or referenced later without also using the huddle's text/notes features or following up with a written summary in the channel — since a huddle is audio-first and not recorded by default the way some video conferencing tools are, anything decided verbally during a huddle that matters for future reference is worth deliberately writing down in the channel afterward rather than assuming it's automatically captured somewhere.